United States Senate elections, 2016

     7 incumbent Democrats running      3 incumbent Democrats retiring
     22 incumbent Republicans running      2 incumbent Republicans retiring
     16 states with no election

^ a b c d e f The Senate race in Louisiana is headed to a runoff after a “jungle primary” in which no candidate received a majority of the vote The runoff is scheduled for December 10
^ a b Both Independents caucus with the Democrats

Majority Leader before election

Mitch McConnell
Republican

Elected Majority Leader

TBD
Republican

Elections to the United States Senate were held on November 8, 2016, with 34 of the 100 seats in the Senate being contested in regular elections, the winners of which will serve six-year terms in the United States Congress until January 3, 2023 All class 3 Senators were up for election; class 3 was last up for election in 2010, when Republicans won a net gain of six seats In 2016 Democrats defended 10 seats, while Republicans defended 24 seats Republicans, having taken control of the Senate in the 2014 election, held the Senate majority with 54 seats prior to this election Democrats won a net gain of two seats, with the possibility of one more pickup depending on the winner of the Senate race in Louisiana Republicans will retain control of the Senate for the 115th United States Congress Only two incumbents lost their seats, Kelly Ayotte of New Hampshire and Mark Kirk of Illinois, both to Democrats, Maggie Hassan and Tammy Duckworth, respectively Despite Republicans retaining control of the Senate, 2016 marks the first time since 1986 where Democrats gained seats in class 3

The 2016 presidential election, 2016 House elections, 2016 gubernatorial elections, and many state and local elections were also held on this date

1 Partisan composition
2 Change in composition
- 21 Before the elections
- 22 After the elections
3 Latest predictions of competitive seats
4 Primary dates
5 Race summary
6 Complete list of races
- 61 Alabama
- 62 Alaska
- 63 Arizona
- 64 Arkansas
- 65 California
- 66 Colorado
- 67 Connecticut
- 68 Florida
- 69 Georgia
- 610 Hawaii
- 611 Idaho
- 612 Illinois
- 613 Indiana
- 614 Iowa
- 615 Kansas
- 616 Kentucky
- 617 Louisiana
- 618 Maryland
- 619 Missouri
- 620 Nevada
- 621 New Hampshire
- 622 New York
- 623 North Carolina
- 624 North Dakota
- 625 Ohio
- 626 Oklahoma
- 627 Oregon
- 628 Pennsylvania
- 629 South Carolina
- 630 South Dakota
- 631 Utah
- 632 Vermont
- 633 Washington
- 634 Wisconsin
7 See also
8 References

Partisan composition

All 34 Class 3 Senators were up for election in 2016; Class 3 consisted of 10 Democrats and 24 Republicans Of the Senators not up for election, 35 Senators were Democrats, 30 Senators were Republicans and one Senator is an independent who caucuses with the Senate Democrats

Parties		Democratic	Republican	Independent	TBD	Total
Parties					TBD	Total
Before these elections		44	54	2	0	100
Not up		34	30	2	0	66
	Class 1 2012→2018	23	8	2	0	33
	Class 2 2014→2020	11	22	0	0	33
Up		10	24	0	0	34
	Class 3 2010→2016	10	24	0	0	34
	Special: All classes	0	0	0	0	0

General election
Incumbent retired		3	2	—	—	5
	Held by same party	3	1	—	—	4
	Replaced by other party	0	0	—	—	0
	Result	3	1	—	1	5
Incumbent ran		7	22	—	—	29
	Won re-election	7	20	—	—	27
	Lost re-election	2 Republicans replaced by 2 Democrats		—	—	2
	Lost renomination but held by same party	0	0	—	—	0
	Result	9	20	—	—	29

Total elected		12	21	—	1	34
Net gain/loss		2	2	—	1

Nationwide vote
	Share					100%

Result		46	51	2	1	TBD

Change in composition

Before the elections

D39 Ran	D40 Ran	D41 Ran	D42 Retired	D43 Retired	D44 Retired	R54 Retired	R53 Retired	R52 Ran	R51 Ran
I1	I2	D1	D2	D3	D4	D5	D6	D7	D8
D18	D17	D16	D15	D14	D13	D12	D11	D10	D9
D19	D20	D21	D22	D23	D24	D25	D26	D27	D28
D38 Ran	D37 Ran	D36 Ran	D35 Ran	D34	D33	D32	D31	D30	D29
Majority →									R51 Ran
R41 Ran	R42 Ran	R43 Ran	R44 Ran	R45 Ran	R46 Ran	R47 Ran	R48 Ran	R49 Ran	R50 Ran
R40 Ran	R39 Ran	R38 Ran	R37 Ran	R36 Ran	R35 Ran	R34 Ran	R33 Ran	R32 Ran	R31 Ran
R21	R22	R23	R24	R25	R26	R27	R28	R29	R30
R20	R19	R18	R17	R16	R15	R14	R13	R12	R11
R1	R2	R3	R4	R5	R6	R7	R8	R9	R10

After the elections

D39 Hold	D40 Hold	D41 Hold	D42 Hold	D43 Hold	D44 Hold	D45 Gain	D46 Gain	TBD	R51 Hold
I1	I2	D1	D2	D3	D4	D5	D6	D7	D8
D18	D17	D16	D15	D14	D13	D12	D11	D10	D9
D19	D20	D21	D22	D23	D24	D25	D26	D27	D28
D38 Hold	D37 Hold	D36 Hold	D35 Hold	D34	D33	D32	D31	D30	D29
Majority →									R51 Hold
R41 Hold	R42 Hold	R43 Hold	R44 Hold	R45 Hold	R46 Hold	R47 Hold	R48 Hold	R49 Hold	R50 Hold
R40 Hold	R39 Hold	R38 Hold	R37 Hold	R36 Hold	R35 Hold	R34 Hold	R33 Hold	R32 Hold	R31 Hold
R21	R22	R23	R24	R25	R26	R27	R28	R29	R30
R20	R19	R18	R17	R16	R15	R14	R13	R12	R11
R1	R2	R3	R4	R5	R6	R7	R8	R9	R10

Key:

D#	Democratic
R#	Republican
I#	Independent, caucusing with Democrats

Latest predictions of competitive seats

Several sites and individuals publish predictions of competitive seats These predictions look at factors such as the strength of the incumbent if the incumbent is running for re-election, the strength of the candidates, and the partisan leanings of the state reflected in part by the state's Cook Partisan Voting Index rating The predictions assign ratings to each seat, with the rating indicating the predicted advantage that a party has in winning that seat Most election predictors use "tossup" to indicate that neither party has an advantage, "lean" to indicate that one party has a slight advantage, "likely" or "favored" to indicate that one party has a significant but not insurmountable advantage, and "safe" or "solid" to indicate that one party has a near-certain chance of victory Some predictions also include a "tilt" rating that indicates that one party has an advantage that is not quite as strong as the "lean" rating would indicate

Where a site gives a percentage probability as its primary indicator of expected outcome, the chart below classifies a race as follows:

Tossup: 50-55%
Tilt: 56-60%
Lean: 61-75%
Likely: 76-93%
Safe: 94-100%

The New York Times' Upshot gave the Democrats a 60% chance of winning the Senate on August 24, 2016; on September 23, their model gave Republicans a 58% chance to maintain control

All seats classified with at least one rating of anything other than "safe" or "solid" are listed below

State	PVI	Incumbent	2010 result	Cook Nov 2 2016	Sabato Nov 7 2016	Roth Nov 3 2016	Kos Nov 7 2016	RCP Nov 2 2016	538 Nov 7 2016	NYT Nov 7 2016	TPM Nov 5 2016	Winner
Alaska	112 !R+12	Murkowski, LisaLisa Murkowski R	395%	103 !Likely R	104 !Safe R	104 !Safe R	104 !Safe R	104 !Safe R	104 !98% R	104 !99+% R	104 !Safe R	Murkowski
Arizona	107 !R+7	McCain, JohnJohn McCain R	592%	102 !Lean R	103 !Likely R	103 !Likely R	103 !Likely R	102 !Lean R	104 !97% R	104 !99% R	104 !Safe R	McCain
Colorado	099 !D+1	Bennet, MichaelMichael Bennet D	3 !477%	097 !Likely D	096 !Safe D	096 !Safe D	096 !Safe D	098 !Lean D	096 !95% D	096 !96% D	097 !Likely D	Bennet
Florida	102 !R+2	Rubio, MarcoMarco Rubio R	489%	102 !Lean R	102 !Lean R	102 !Lean R	103 !Likely R	100 !Tossup	103 !87% R	103 !85% R	102 !Lean R	Rubio
Georgia	106 !R+6	Isakson, JohnnyJohnny Isakson R	581%	103 !Likely R	104 !Safe R	104 !Safe R	104 !Safe R	103 !Likely R	104 !97% R	104 !99% R	104 !Safe R	Isakson
Illinois	092 !D+8	Kirk, MarkMark Kirk R	482%	098 !Lean D	097 !Likely D	098 !Lean D	096 !Safe D	097 !Likely D	096 !97% D	096 !98% D	096 !Safe D	Duckworth
Indiana	105 !R+5	Coats, DanDan Coats R Retiring	564%	100 !Tossup	102 !Lean R	100 !Tossup	100 !Tossup	100 !Tossup	102 !61% R	100 !53% D	102 !Lean R	Young
Iowa	099 !D+1	Grassley, ChuckChuck Grassley R	645%	103 !Likely R	104 !Safe R	104 !Safe R	104 !Safe R	104 !Safe R	104 !99+% R	104 !99+% R	104 !Safe R	Grassley
Kentucky	113 !R+13	Paul, RandRand Paul R	557%	104 !Safe R	104 !Safe R	104 !Safe R	104 !Safe R	103 !Likely R	103 !93% R	104 !97% R	104 !Safe R	Paul
Louisiana	112 !R+12	Vitter, DavidDavid Vitter R Retiring	566%	104 !Safe R	103 !Likely R	104 !Safe R	104 !Safe R	103 !Likely R	103 !86% R	104 !96% R	103 !Likely R	TBD
Missouri	105 !R+5	Blunt, RoyRoy Blunt R	543%	100 !Tossup	102 !Lean R	100 !Tossup	100 !Tossup	100 !Tossup	102 !55% R	102 !65% R	100 !Tossup	Blunt
Nevada	098 !D+2	Reid, HarryHarry Reid D Retiring	2 !502%	100 !Tossup	098 !Lean D	100 !Tossup	098 !Lean D	100 !Tossup	099 !57% D	099 !60% D	100 !Tossup	Cortez Masto
New Hampshire	099 !D+1	Ayotte, KellyKelly Ayotte R	602%	100 !Tossup	098 !Lean D	100 !Tossup	100 !Tossup	100 !Tossup	100 !53% D	100 !55% R	100 !Tossup	Hassan
North Carolina	103 !R+3	Burr, RichardRichard Burr R	550%	100 !Tossup	102 !Lean R	100 !Tossup	100 !Tossup	100 !Tossup	102 !69% R	102 !67% R	100 !Tossup	Burr
Ohio	101 !R+1	Portman, RobRob Portman R	573%	102 !Lean R	104 !Safe R	103 !Likely R	104 !Safe R	103 !Likely R	104 !98% R	104 !97% R	104 !Safe R	Portman
Pennsylvania	099 !D+1	Toomey, PatPat Toomey R	510%	100 !Tossup	098 !Lean D	100 !Tossup	100 !Tossup	100 !Tossup	098 !68% D	098 !66% D	098 !Lean D	Toomey
Wisconsin	098 !D+2	Johnson, RonRon Johnson R	519%	100 !Tossup	098 !Lean D	097 !Tilt D	098 !Lean D	100 !Tossup	097 !87% D	098 !72% D	098 !Lean D	Johnson

Cook, Sabato, Rothenberg, Daily Kos Elections, FiveThirtyEight, Real Clear Politics, Talking Points Memo, and the New York Times consider the states listed below to be safe seats for the party currently holding the seat

Safe Republican	Safe Democratic
Alabama	CaliforniaO
Arkansas	Connecticut
Idaho	Hawaii
Kansas	MarylandO
North Dakota	New York
Oklahoma	Oregon
South Carolina	Vermont
South Dakota	Washington
Utah

O indicates an open seat

Primary dates

This table shows the primary dates for regularly-scheduled elections It also shows the type of primary

"Open" primary: any registered voter can vote in any party's primary
"Closed" primary, only voters registered with a specific party can vote in that party's primary
"Top-two" primary, all candidates run against each other regardless of party affiliation, and the top two candidates advance to the second round of voting In Louisiana, a candidate can win the election by winning a majority of the vote in the first round
All of the various other primary types are classified as "hybrid" Alaska in 2008 provides one example of a hybrid primary: The Democratic Party allowed unaffiliated voters to vote in its primary, while the Republican Party only allowed party members to vote in its primary

State	Date	Type
Alabama	Mar 1R	Open
Arkansas	Mar 1R	Open
Illinois	Mar 15	Hybrid
North Carolina	Mar 15	Hybrid
Ohio	Mar 15	Hybrid
Maryland	April 26	Hybrid
Pennsylvania	April 26	Closed
Indiana	May 3	Open
Idaho	May 17	Hybrid
Kentucky	May 17	Closed
Oregon	May 17	Hybrid
Georgia	May 24R	Open
California	June 7	Top-two
Iowa	June 7	Hybrid
South Dakota	June 7R	Hybrid
Nevada	June 14	Closed
North Dakota	June 14	Open
South Carolina	June 14R	Hybrid
Colorado	June 28	Hybrid
New York	June 28	Closed
Oklahoma	June 28R	Hybrid
Utah	June 28	Hybrid
Kansas	Aug 2	Closed
Missouri	Aug 2	Open
Washington	Aug 2	Top-two
Connecticut	Aug 9	Hybrid
Vermont	Aug 9	Open
Wisconsin	Aug 9	Open
Hawaii	Aug 13	Open
Alaska	Aug 16	Hybrid
Arizona	Aug 30	Hybrid
Florida	Aug 30	Closed
New Hampshire	Sep 13	Hybrid
Louisiana	Nov 8	Top-two

RIndicates a state that requires primary run-off elections under certain conditions

Race summary

State linked to summaries below	Incumbent			Status	Candidates
State linked to summaries below	Senator	Party	Electoral history	Status	Candidates
Alabama	Shelby, RichardRichard Shelby	Republican	1986 1992 1998 2004 2010	Incumbent re-elected	√ Richard Shelby Republican Ron Crumpton Democratic
Alaska	Murkowski, LisaLisa Murkowski	Republican	2002 !2002 Appointed 2004 2010	Incumbent re-elected	√ Lisa Murkowski Republican Ray Metcalfe Democratic Joe Miller Libertarian Margaret Stock Independent
Arizona	McCain, JohnJohn McCain	Republican	1986 1992 1998 2004 2010	Incumbent re-elected	√ John McCain Republican Ann Kirkpatrick Democratic Pat Quinn independent/Write-in Gary Swing Green/Write-in
Arkansas	Boozman, JohnJohn Boozman	Republican	2010	Incumbent re-elected	√ John Boozman Republican Conner Eldridge Democratic Frank Gilbert Libertarian
California	Boxer, BarbaraBarbara Boxer	Democratic	1992 1998 2004 2010	Incumbent retired Democratic hold	√ Kamala Harris Democratic Loretta Sanchez Democratic
Colorado	Bennet, MichaelMichael Bennet	Democratic	2009 !2009 Appointed 2010	Incumbent re-elected	√ Michael Bennet Democratic Darryl Glenn Republican Lily Tang Williams Libertarian Arn Menconi Green
Connecticut	Blumenthal, RichardRichard Blumenthal	Democratic	2010	Incumbent re-elected	√ Richard Blumenthal Democratic Dan Carter Republican Richard Lion Libertarian Jeff Russell Green
Florida	Rubio, MarcoMarco Rubio	Republican	2010	Incumbent re-elected	√ Marco Rubio Republican Patrick Murphy Democratic Paul Stanton Libertarian
Georgia	Isakson, JohnnyJohnny Isakson	Republican	2004 2010	Incumbent re-elected	√ Johnny Isakson Republican Jim Barksdale Democratic Allen Buckley Libertarian
Hawaii	Schatz, BrianBrian Schatz	Democratic	2012 !2012 Appointed 2014 Special	Incumbent re-elected	√ Brian Schatz Democratic John Carroll Republican Michael Kokoski Libertarian
Idaho	Crapo, MikeMike Crapo	Republican	1998 2004 2010	Incumbent re-elected	√ Mike Crapo Republican Jerry Sturgill Democratic Ray Writz Constitution
Illinois	Kirk, MarkMark Kirk	Republican	2010	Incumbent lost re-election Democratic gain	Mark Kirk Republican √ Tammy Duckworth Democratic Kent McMillen Libertarian Scott Summers Green
Indiana	Coats, DanDan Coats	Republican	1989 Appointed 1990 Special 1992 1998 Retired 2010	Incumbent retired Republican hold	√ Todd Young Republican Evan Bayh Democratic Lucy Brenton Libertarian
Iowa	Grassley, ChuckChuck Grassley	Republican	1980 1986 1992 1998 2004 2010	Incumbent re-elected	√ Chuck Grassley Republican Patty Judge Democratic Chuck Aldrich Libertarian
Kansas	Moran, JerryJerry Moran	Republican	2010	Incumbent re-elected	√ Jerry Moran Republican Patrick Wiesner Democratic Robert Garrard Libertarian
Kentucky	Paul, RandRand Paul	Republican	2010	Incumbent re-elected	√ Rand Paul Republican Jim Gray Democratic
Louisiana	Vitter, DavidDavid Vitter	Republican	2004 2010	Incumbent retired New senator yet to be determined	Foster Campbell Democratic John Kennedy Republican
Maryland	Mikulski, BarbaraBarbara Mikulski	Democratic	1986 1992 1998 2004 2010	Incumbent retired Democratic hold	√ Chris Van Hollen Democratic Kathy Szeliga Republican Margaret Flowers Green
Missouri	Blunt, RoyRoy Blunt	Republican	2010	Incumbent re-elected	√ Roy Blunt Republican Jason Kander Democratic Jonathan Dine Libertarian
Nevada	Reid, HarryHarry Reid	Democratic	1986 1992 1998 2004 2010	Incumbent retired Democratic hold	√ Catherine Cortez Masto Democratic Joe Heck Republican Tom Jones Independent American Tony Gumina unaffiliated Tom Sawyer unaffiliated Jarrod Michael Williams unaffiliated None of these candidates
New Hampshire	Ayotte, KellyKelly Ayotte	Republican	2010	Incumbent lost re-election Democratic gain	Kelly Ayotte Republican √ Maggie Hassan Democratic Brian Chabot Libertarian
New York	Schumer, ChuckChuck Schumer	Democratic	1998 2004 2010	Incumbent re-elected	√ Chuck Schumer Democratic Wendy Long Republican Alex Merced Libertarian Robin Wilson Green
North Carolina	Burr, RichardRichard Burr	Republican	2004 2010	Incumbent re-elected	√ Richard Burr Republican Deborah Ross Democratic Sean Haugh Libertarian
North Dakota	Hoeven, JohnJohn Hoeven	Republican	2010	Incumbent re-elected	√ John Hoeven Republican Eliot Glassheim Democratic Robert Marquette Libertarian
Ohio	Portman, RobRob Portman	Republican	2010	Incumbent re-elected	√ Rob Portman Republican Ted Strickland Democratic Joseph DeMare Green
Oklahoma	Lankford, JamesJames Lankford	Republican	2014 Special	Incumbent re-elected	√ James Lankford Republican Mike Workman Democratic Robert Murphy Libertarian
Oregon	Wyden, RonRon Wyden	Democratic	1996 Special 1998 2004 2010	Incumbent re-elected	√ Ron Wyden Democratic Mark Callahan Republican Jim Lindsay Libertarian Eric Navickas Green
Pennsylvania	Toomey, PatPat Toomey	Republican	2010	Incumbent re-elected	√ Pat Toomey Republican Kathleen McGinty Democratic Edward Clifford Libertarian
South Carolina	Scott, TimTim Scott	Republican	2013 !2013 Appointed 2014 Special	Incumbent re-elected	√ Tim Scott Republican Thomas Dixon Democratic Bill Bledsoe Libertarian
South Dakota	Thune, JohnJohn Thune	Republican	2004 2010	Incumbent re-elected	√ John Thune Republican Jay Williams Democratic
Utah	Lee, MikeMike Lee	Republican	2010	Incumbent re-elected	√ Mike Lee Republican Misty K Snow Democratic Stoney Fonua Independent American Bill Barron unaffiliated
Vermont	Leahy, PatrickPatrick Leahy	Democratic	1974 1980 1986 1992 1998 2004 2010	Incumbent re-elected	√ Patrick Leahy Democratic Scott Milne Republican Pete Diamondstone Liberty Union Cris Ericson Marijuana Jerry Trudell unaffiliated
Washington	Murray, PattyPatty Murray	Democratic	1992 1998 2004 2010	Incumbent re-elected	√ Patty Murray Democratic Chris Vance Republican
Wisconsin	Johnson, RonRon Johnson	Republican	2010	Incumbent re-elected	√ Ron Johnson Republican Russ Feingold Democratic Phil Anderson Libertarian

Complete list of races

Thirty-four seats were up for election in 2016:

7 Democrats and 21 Republicans sought re-election
5 Senators 3 Democrats, 2 Republicans retired

Alabama

Main article: United States Senate election in Alabama, 2016

Five-term Senator Richard Shelby Republican was re-elected with 65% of the vote in 2010 He was 82 years old in 2016 He ran for re-election He served in the Senate as a Democrat until switching parties in 1994 Shelby ran for re-election and faced four challengers in the Republican primary: ex-state Senator Shadrack McGill, former Marine and Birmingham businessman Jonathan McConnell, Marcus Bowman, and John Martin On March 1, Shelby won the primary with 65% of the vote

There were two Democratic candidates: Ron Crumpton, patient rights advocate, and Charles Nana Crumpton won the primary with 56% of the vote

Sen Shelby won re-election with 64% of the vote

Alaska

Main article: United States Senate election in Alaska, 2016

Two-term Senator Lisa Murkowski Republican was appointed in 2002 and elected to a full term in 2004 She was defeated in the Republican primary in 2010 by Joe Miller She later ran as a write-in candidate in the 2010 general election and was re-elected to a second full term with 40% of the vote, making her one of two senators in US history to win election via write-in votes She was 59 years old in 2016 She ran for re-election

Thomas Lamb, a candidate for the State House in 2006, and Bob Lochner filed to run against Murkowski Other potential Republican primary challengers included 2010 nominee and 2014 candidate Joe Miller, State Senator Mike J Dunleavy, former Lieutenant Governor Mead Treadwell, and former Mayor of Anchorage Dan Sullivan

The only person to file for the Democratic primary as of May 20 was writer and satirist Richard Grayson, who previously sought election to Wyoming's House seat in 2014 Potential Democratic candidates included State Senator Dennis Egan, State Representative Andy Josephson, State Senator Bill Wielechowski, State Senator Hollis French and State Senate Minority Leader Johnny Ellis Former Senator Mark Begich was mentioned as a possible candidate, but he declined to run

Murkowski won her primary on August 16, 2016 with 72 percent of the vote

Joe Miller received the Libertarian nomination and will run against Murkowski in the general election

Anchorage attorney and veteran Margaret Stock ran as an Independent candidate

Sen Murkowski won re-election with 44% of the vote compared to Miller with 30% and Metcalfe with 11% 15% went to other candidates Murkowski has been re-elected three times now with 48% in 2004, 395% in 2010 and 44% in 2016, never having won a majority

Arizona

Main article: United States Senate election in Arizona, 2016

Five-term Senator and Republican presidential candidate in 2008 John McCain was re-elected with 59% of the vote in 2010 He was 80 years old in 2016 Despite speculation that he might retire, McCain ran for re-election

McCain faced primary challenges from Fair Tax activist Alex Meluskey, businessman David Pizer, talk radio host Clair Van Steenwyk, and State Senator Kelli Ward David Pizer later dropped out of the race Representatives Matt Salmon and David Schweikert were both mentioned as possible candidates, but both chose not to run Other potential Republican candidates included former Governor Jan Brewer, businesswoman and 2014 gubernatorial candidate Christine Jones, former Governor of Alaska and 2008 vice presidential candidate Sarah Palin, former US Representative John Shadegg, and former Arizona Attorney General Grant Woods

Congresswoman Ann Kirkpatrick and teacher Lennie Clark ran for the Democratic nomination Lennie Clark dropped out and Ann Kirkpatrick became the Democratic nominee Other potential Democratic candidates included US Representative Ruben Gallego, former Surgeon General and 2012 nominee Richard Carmona, 2014 gubernatorial nominee Fred DuVal, Phoenix Mayor Greg Stanton, and retired astronaut Mark Kelly, who is the husband of ex-Congresswoman Gabrielle Giffords

Sen McCain won re-election with 53% to Kirkpatrick's 41%

Arkansas

Main article: United States Senate election in Arkansas, 2016

One-term Senator John Boozman Republican defeated two-term Senator Blanche Lincoln with 58% of the vote in 2010 He was 65 years old in 2016 Despite speculation that he might retire following health problems, Boozman ran for re-election Fellow Republican Curtis Coleman, who ran against Boozman in 2010 but came in fifth place, ran again

Conner Eldridge, the former US Attorney for the Western District of Arkansas, is the only Democrat who met the filing deadline

Frank Gilbert is the candidate for the Libertarian Party, and Jason Tate was running a write-in campaign

Sen Boozman won re-election with 60% to Eldridge's 36%

California

Main article: United States Senate election in California, 2016

Four-term Senator Barbara Boxer Democrat was re-elected with 52% of the vote in 2010 Boxer declined to run for re-election California Attorney General Kamala Harris and US Representative Loretta Sanchez, both Democrats, finished first and second, respectively, in California's nonpartisan blanket primary, and will contest the general election As such, Boxer's successor is guaranteed to be a Democrat This marks a historic first such occasion in California, ever since the Senate elections began in 1914

Other Democrats on the primary ballot included "President" Cristina Grappo, Massie Munroe, Herbert Peters, Emory Rogers, and Steve Stokes Among the potential candidates who declined to run were Governor Jerry Brown, Lieutenant Governor Gavin Newsom, US Representatives Xavier Becerra and Adam Schiff, and Los Angeles Mayor Eric Garcetti

Former state Republican Party chairs Tom Del Beccaro and Duf Sundheim, and former State Senator Phil Wyman ran, along with Don Krampe, Tom Palzer, Karen Roseberry, Greg Conlon, Von Huogo, Jerry Laws, Ron Unz, Jarrell Williamson, and George Yang State Assemblymen Rocky Chavez was running as well, but withdrew from the race Republicans who were once considered potential candidates but ruled out runs included San Diego Mayor Kevin Faulconer, former Assistant Secretary of the Treasury for Financial Stability and 2014 gubernatorial nominee Neel Kashkari, US Representative Darrell Issa, and businesswoman and nominee for the US Senate in 2010 Carly Fiorina

Independent Mike Beitiks ran on a single-issue climate change platform

Polling conducted by the SurveyUSA from March 30, 2016 to April 3, 2016 indicated that Harris was ahead with 26%, compared to Rep Sánchez with 22%, Del Beccaro with 8%, Wyman with 8%, and Sundheim with 3%; 7% of those polled were supporting other candidates, and 24% were undecided

Harris won the election with 63% of the vote to Sanchez's 37%

Colorado

Main article: United States Senate election in Colorado, 2016

One-term Senator Michael Bennet Democrat was appointed in 2009 and elected to a full term with 48% of the vote in 2010 He was 51 years old in 2016 He ran for re-election

Businessman Robert Blaha, former Aurora councilman Ryan Frazier, El Paso County Commissioners Darryl Glenn, and Peggy Littleton, former Colorado State University Athletic Director Jack Graham, State Representative Jon Keyser, former SBA director Greg Lopez, State Senator Tim Neville, and Jefferson County Commissioner Donald Rosier ran for the Republican nomination Glenn, Graham, Blaha, Keyser, and Frazier actually competed in the primary

Darryl Glenn won the Republican nomination with 37% of the vote against four other opponents

Bennet won re-election with 49% of the vote to Glenn's 46%

Connecticut

Main article: United States Senate election in Connecticut, 2016

One-term Senator Richard Blumenthal Democrat was elected with 55% of the vote in 2010 He was 70 years old in 2016 He ran for re-election

State Representative Dan Carter, apparel company CEO and 2004 Senate nominee Jack Orchulli, and former Olympic athlete August Wolf ran for the Republican nomination Another potential candidate was former West Hartford Town Councilor Joe Visconti, who ran for CT-01 in 2008 and ran as an Independent for Governor in 2014 Former US Comptroller General and 2014 candidate for Lieutenant Governor David M Walker, former US Representative and 2010 candidate Rob Simmons, and economist and former CNBC television host Lawrence Kudlow declined to run

Blumenthal won re-election with 63% of the vote to Carter's 35%

Florida

Main article: United States Senate election in Florida, 2016

One-term Senator Marco Rubio Republican was elected in a three-way race with 49% of the vote in 2010 In April 2014, Rubio stated that he would not run for both the Senate and President in 2016, as Florida law prohibits a candidate from appearing twice on a ballot In April 2015, he announced that he would run for President and would not seek re-election After suspending his campaign on March 15, 2016, Rubio announced on June 22, 2016 that he changed his mind and will run for re-election

US Representative Ron DeSantis, combat veteran Todd Wilcox, real estate developer Carlos Beruff, retired college lecturer Ilya Katz, and Donald J DeRenzo ran for the Republican nomination Ben Carson, retired neurosurgeon and candidate for President in 2016 is also mentioned as a potential candidate On June 17, 2016, US Representative David Jolly withdrew from the race to run for re-election to his House seat, four days after Rubio began openly considering reversing his decision to not run for re-election

US Representative Patrick Murphy defeated fellow representative Alan Grayson, as well as Pam Keith, Lateresa Jones, Richard Coleman, Sam Brian Gibbons, and Josh Larose, for the Democratic nomination Murphy lost to incumbent Marco Rubio in the November general election on November 8

Sen Rubio won re-election with 52% of the vote compared to Murphy's 46%

Georgia

Main article: United States Senate election in Georgia, 2016

Two-term Senator Johnny Isakson Republican was re-elected with 58% of the vote in 2010 He was 71 years old in 2016 He ran for re-election In 2015, Isakson announced he was being treated for Parkinson's disease, but stated that his treatment would not interfere with his re-election campaign or his ability to serve another term

Mary Kay Bacallao, college professor, former Fayette County Board of Education member, and candidate for State Superintendent of Schools in 2014 and Derrick Grayson, candidate for the state's other Senate seat in 2014, challenged Isakson for the Republican nomination Isakson won the Republican nomination with more than three quarters of the vote

Investment firm executive Jim Barksdale, project manager Cheryl Copeland, and businessman John Coyne ran for the Democratic nomination USAF veteran Jim Knox was running but dropped out of the race Barksdale defeated Copeland in a close race to win the Democratic nomination

Sen Isakson won re-election with 55% to Barksdale's 41%

Hawaii

Main article: United States Senate election in Hawaii, 2016

In 2012, Hawaii Governor Neil Abercrombie appointed Lieutenant Governor Brian Schatz Democrat to take the place of deceased nine-term Senator Daniel Inouye Schatz won a 2014 special election to serve the remainder of Inouye's term Schatz ran for re-election

Former US Representative and 2014 Senate candidate Colleen Hanabusa may challenge Schatz in the primary again, while US Representative Tulsi Gabbard declined to seek the Democratic nomination for the seat

Charles Collins, a Republican who ran for the Senate in 2012 and for Governor in 2014, was seeking the nomination again, but withdrew from the race

Sen Schatz won re-election with 74% of the vote compared to Carroll's 22%

Idaho

Main article: United States Senate election in Idaho, 2016

Three-term Senator Mike Crapo Republican was re-elected with 71% of the vote in 2010 Crapo was 65 years old in 2016 He ran for re-election US Representative Raul Labrador declined to challenge Crapo in the Republican primary

Jerry Sturgill ran for the Democratic nomination

Perennial candidate Pro-Life ran as an independent He was defeated in the Constitution Party primary on May 17, 2016 to Ray J Writz

Illinois

Main article: United States Senate election in Illinois, 2016

One-term Senator Mark Kirk Republican was elected with 48% of the vote in 2010 He was 57 years old in 2016 He ran for re-election Kirk suffered a stroke in January 2012 that kept him away from the Senate until January 2013 In June 2013, he confirmed that he was planning to run for re-election, but speculation he might retire persisted In November 2014, Kirk reiterated that he was going to run for re-election, saying: "No frickin' way am I retiring"

Joe Walsh, a former US Representative and conservative talk radio host, declined to challenge Kirk in the Republican primary Two others filed for the right to challenge Senator Kirk in the primary: businessman James Marter, and Elizabeth Pahlke, but Pahlke was disqualified, so only Marter was on the ballot running against Kirk On March 15, Kirk won the primary with 71% of the vote

US Representative Tammy Duckworth, President and CEO of the Chicago Urban League Andrea Zopp, and State Senator Napoleon Harris ran for the Democratic nomination On March 15, Duckworth won the primary with 64% of the vote

In December 2015, Jim Brown, a teacher and former businessman, announced he was running as an independent

Chris Aguayo, an Iraq/Afghan war Veteran and Veterans Party State Chair, announced he was running representing the Veterans Party

Rep Duckworth unseated Sen Kirk with 54% compared to his 40%

Indiana

Main article: United States Senate election in Indiana, 2016

Three-term Senator Dan Coats Republican was elected with 55% of the vote in 2010; Coats served in the Senate from 1989 to 1999 and then returned to serve another term from 2011 to 2017 Coats did not run for re-election Republican candidates include US Representatives Marlin Stutzman and Todd Young Coats's chief of Staff Eric Holcomb was a candidate, but withdrew from the race

Former US Representative Baron Hill won the Democratic nomination on May 3, but withdrew in July 2016 in favor of Evan Bayh Bayh held the seat from 1999 until his retirement in 2011, and also served as Governor of Indiana from 1989 to 1997 Former non-profit director John Dickerson also announced he was going to run, but suspended his campaign in early 2016

Former Sen Bayh lost his bid to regain his seat to Rep Young Rep Young garnered 52% to Bayh's 42%

Iowa

Main article: United States Senate election in Iowa, 2016

Six-term Senator Chuck Grassley was re-elected with 65% of the vote in 2010 He was 83 years old in 2016 He ran for re-election Talk radio host Robert Rees announced he was going to challenge Grassley for the nomination, but later withdrew

Former Lt Governor Patty Judge earned the Democratic nomination by defeating State Senator Rob Hogg, former state Senator Tom Fiegen, and former state representative Bob Krause Former state representative Ray Zirkelbach briefly ran but ended his campaign soon after

Sen Grassley won re-election with 60% to Judge's 36%

Kansas

Main article: United States Senate election in Kansas, 2016

One-term Senator Jerry Moran Republican was elected with 70% of the vote in 2010 He was 62 years old in 2016 He ran for re-election Radiologist and 2014 Senate candidate Milton R Wolf and US Representative Tim Huelskamp declined to run

Patrick Wiesner, an attorney and a candidate for the Senate in 2010 and 2014, defeated Monique Singh-Bey for the Democratic nomination Potential candidates who declined to run included Wichita Mayor Carl Brewer, 2014 Governor nominee Paul Davis, former Kansas City Mayor Joe Reardon, former US Representative and 2008 nominee Jim Slattery, and 2014 KS-02 nominee Margie Wakefield

Sen Moran won re-election with 62% to Wiesner's 32%

Kentucky

Main article: United States Senate election in Kentucky, 2016

One-term Senator Rand Paul Republican was elected with 56% of the vote in 2010 He was 53 years old in 2016 Paul filed for re-election, although he was also running for President of the United States in 2016 Although Kentucky law did not allow for a candidate to appear twice on the same ballot, Paul successfully convinced the Kentucky GOP to adopt a caucus system for 2016, allowing Paul to run for president and for the Senate simultaneously Kentucky law still bars Paul from appearing twice on the ballot in the general election However, on February 3, 2016, Paul ended his campaign for the presidency and ran for reelection James Gould and Stephen Slaughter filed to run against Paul Paul won the primary with almost 85% of the vote

Lexington Mayor Jim Gray, Rory Houlihan, Ron Leach, Sellus Wilder Jeff Kender, Tom Recktenwald who was a candidate in 2014, and Grant Short ran for the Democratic nomination Gray won the nomination

Sen Paul won re-election with 57% of the vote to Gray's 43%

Louisiana

Main article: United States Senate election in Louisiana, 2016

Two-term Senator David Vitter Republican was re-elected with 57% of the vote in 2010 After losing the 2015 gubernatorial race, Vitter chose to retire from the Senate at the end of his term

Republicans who ran for the seat included, US Representatives Charles Boustany and John Fleming, former US Representative Joseph Cao, State Treasurer John Neely Kennedy, retired US Air Force Colonel Rob Maness, and former Louisiana State Representative David Duke Other potential Republican candidates are Public Service Commissioner Erik Skrmetta, 2014 candidate for LA-05 Zach Dasher, state representative Paul Hollis, and former President of Jefferson Parish John Young

Democratic candidates included, Public Service Commissioner Foster Campbell, attorney Derrick Edwards, Caroline Fayard, an attorney and candidate for Lieutenant Governor in 2010, and businessman Josh Pellerin Other potential Democratic candidates include state legislators Robert Johnson, Eric LaFleur, and Gary Smith, Jr, and Mayor of Alexandria Jacques Roy Former US Senator Mary Landrieu and her brother, New Orleans Mayor Mitch Landrieu, declined to run

As no candidate won a majority of the vote in the jungle primary, a runoff election will be held on December 10 Republican John Kennedy and Democrat Foster Campbell finished with the most votes in the primary, so they will face each other in the runoff

Maryland

Main article: United States Senate election in Maryland, 2016

Five-term Senator Barbara Mikulski Democrat was re-elected with 62% of the vote in 2010 She is the longest-serving female Senator and the longest-serving woman in the history of the US Congress She is not seeking re-election

The candidates who filed for the Democratic nomination were: US Representatives Donna Edwards and Chris Van Hollen, Freddie Donald Dickson, Jr, Ralph Jaffe, Theresa Scaldaferri, Charles Smith, Violate Staley, Blaine Taylor, Ed Tinus, and Lih Young Van Hollen won the April 26 primary

The Republican candidates who filed were former Deputy Assistant Secretary of Defense and Senate candidate in 2012 Richard Douglas, Chrys Kefalas, State Delegate Kathy Szeliga, Chris Chaffee, Sean Connor, John Graziani, Greg Holmes, Joseph David Hooe, Mark McNicholas, Lynn Richardson, Anthony Seda, Richard Shawver, Dave Walle, and Garry T Yarrington Szeliga won the primary and will face Van Hollen in the general election

Rep Van Hollen won election to the Senate with 60% of the vote to Szeliga's 36%

Missouri

Main article: United States Senate election in Missouri, 2016

One-term Senator Roy Blunt Republican was elected with 54% of the vote in 2010 He was 66 years old in 2016 He ran for re-election Former US Representative and 2012 Senate nominee Todd Akin was rumored to be a possible candidate, but declined to run Three candidates ran against Blunt for the Republican nomination, the best-known being sales manager, tea party activist, and 2010 candidate Kristin Nichols, but Blunt won decisively with 72% of the vote

For the Democrats, Secretary of State Jason Kander easily won the nomination, defeating Robert Mack, Pastor Cori Bush and activist Chief Wana Dubie Governor Jay Nixon and State Treasurer Clint Zweifel chose not to seek election to the Senate

Sen Blunt won re-election with 49% of the vote to Kander's 46%

Nevada

Main article: United States Senate election in Nevada, 2016

Five-term Senator and Senate Minority Leader Harry Reid Democrat was re-elected with 50% of the vote in 2010 Reid is not seeking re-election Former Nevada Attorney General Catherine Cortez Masto earned the Democratic nomination, defeating Bobby Mahendra, Liddo Susan O'Briant, and Allen Rheinhart in the primary on June 14, 2016

Congressman Joe Heck defeated eight candidates, including 2010 nominee Sharron Angle, who ran against Reid in 2010, for the Republican nomination

Jarrod M Williams, an independent candidate ran for the seat He describes himself as a Democratic Socialist, a supporter of Bernie Sanders, and is a member of the Socialist Party USA, although the party doesn't have a chapter in the State of Nevada

Cortez Masto was elected with 471% of the vote to Heck's 447%

New Hampshire

Main article: United States Senate election in New Hampshire, 2016

One-term Senator Kelly Ayotte Republican was elected with 60% of the vote in 2010 She was 48 years old in 2016 Ayotte ran for re-election Jim Rubens, a former state senator, candidate for Governor in 1998 and for the Senate in 2014, announced a challenge to Ayotte in the primary, but Ayotte won the nomination

Brian Chabot is the Libertarian candidate for US Senate in 2016 He is a relative newcomer to politics, having run for US Senate in 2010 and US Representative in 2014

Governor Maggie Hassan ran for the Democratic nomination Other potential candidates include Executive Councilor Chris Pappas, State Senators Dan Feltes and Donna Soucy, Portsmouth City Councilor and daughter of US Senator Jeanne Shaheen Stefany Shaheen, and campaign manager for Senator Shaheen Mike Vlacich

A series of polls taken by WMUR/UNH in February, April, and July 2016, as well as WBUR polls taken in May and July/August, show Hassan gaining support over time and now leading Ayotte

Gov Hassan won a very close election, 353,978 or 4797%, to Sen Ayotte's 353,262 or 4787%, a difference of 716 votes Sen Ayotte conceded the race to Gov Hassan around noon Wednesday November 9, 2016

New York

Main article: United States Senate election in New York, 2016

Three-term Senator Chuck Schumer Democrat was re-elected with 66% of the vote in 2010 He was 66 years old in 2016 He ran for re-election Chuck Schumer is widely expected to succeed Harry Reid as the leader of the Senate Democrats

Wendy Long, the Republican nominee in 2012, ran as the nominee of Republican, Conservative, and Reform Parties Other potential Republican candidates included US Representatives Chris Gibson and Peter T King US Representative Richard L Hanna, Manhattan Republican Party Chairwoman Adele Malpass, and former CNBC television host Larry Kudlow were also mentioned as possible candidates, but all have declined to run

North Carolina

Main article: United States Senate election in North Carolina, 2016

Two-term Senator Richard Burr Republican was re-elected with 55% of the vote in 2010 He was 61 years old in 2016 There had been speculation that Burr might retire, but he ran for re-election

Three Republicans challenged Sen Burr in the primary: Greg Brannon, Larry Holmquist, and former Superior Court Judge Paul Wright On March 15, Burr won the primary with 61% of the vote

Former state representative Deborah Ross, Spring Lake Mayor Chris Rey, businessman Kevin Griffin, and retired US Army Captain Ernest Reeves ran for the Democratic nomination Former US Senator Kay Hagan, state treasurer Janet Cowell, and Anthony Foxx, the United States Secretary of Transportation and former Mayor of Charlotte, declined to run On March 15, Ross won the primary with 62% of the vote Burr won re-election 51% to 45% for Ross

North Dakota

Main article: United States Senate election in North Dakota, 2016

One-term Senator John Hoeven Republican was elected with 76% of the vote in 2010 He was 59 years old in 2016 He ran for re-election

Democrats endorsed state representative Eliot Glassheim

On November 7, 2015, the Libertarian party nominated Robert Marquette

Ohio

Main article: United States Senate election in Ohio, 2016

One-term Senator Rob Portman Republican was elected with 57% of the vote in 2010 He was 60 years old in 2016 He ran for re-election He had considered running for President, but decided not to

Two candidates filed to challenge him: Don Elijah Eckhart, who ran for OH-15 as an independent in 2008, and Melissa Strzala, but Strzala was disqualified On March 15, Portman won the primary with 82% of the vote

Former Governor and Congressman Ted Strickland, Cincinnati City Councilman PG Sittenfeld, and occupational therapist Kelli Prather ran for the Democratic nomination Former State Representative Bob Hagan had filed papers to run, but later withdrew from the race On March 15, Strickland won the primary with 65% of the vote

Joseph DeMare, a machinist from Bowling Green, is the Green Party candidate He ran unopposed in the March 15, 2016 primary, and received enough votes to substantially increase the number of enrolled Green Party members In Ohio, the only way to join a political party is to vote in that Party's primary

Oklahoma

Main article: United States Senate election in Oklahoma, 2016

Two-term Senator Tom Coburn Republican was re-elected with 71% of the vote in 2010, but chose to leave office before the end of his term after being diagnosed with prostate cancer James Lankford won the 2014 special election to serve the remainder of Coburn's term Lankford ran for re-election

Former Congressman Dan Boren was viewed by some Oklahoma political operatives as the only Democrat who could make the 2016 race competitive, but was seen as unlikely to run Lankford's 2014 special election opponent Constance N Johnson has said that she plans to run again

Oregon

Main article: United States Senate election in Oregon, 2016

Three-term Senator Ron Wyden Democrat was re-elected with 57% of the vote in 2010 He was 67 years old in 2016 He ran for re-election

Medford City Councilor Kevin Stine and retired locomotive engineer Paul Weaver challenged Wyden for the Democratic nomination Wyden won the Democratic nomination

Information technology consultant and 2014 candidate Mark Callahan, businessman Sam Carpenter, business consultant Dan Laschober, Steven Reynolds, and Lane County commissioner Faye Stewart ran for the Republican nomination Callahan won the Republican nomination

Pennsylvania

Main article: United States Senate election in Pennsylvania, 2016

One-term Senator Pat Toomey Republican was elected with 51% of the vote in 2010 He was 54 years old in 2016 Toomey ran for re-election

Everett Stern, a security intelligence consultant and whistleblower of the HSBC money laundering scandal, announced that he would challenge Toomey for the Republican nomination, but has missed the filing deadline, so Toomey was unopposed in the primary

Democratic candidates included Katie McGinty, former Chief of Staff to Governor Tom Wolf and former Secretary of the Pennsylvania Department of Environmental Protection, former Congressman Joe Sestak, who defeated incumbent Senator Arlen Specter a Democrat turned Republican turned back to Democrat for the 2010 Democratic nomination, but lost to Toomey in the general election, the current mayor of Braddock, Pennsylvania, John Fetterman, who is an AmeriCorps alum and Harvard University graduate, and small businessman and senate candidate in 2010 and 2012 Joseph Vodvarka Allentown Mayor Ed Pawlowski announced his candidacy for the seat but suspended his campaign due to an FBI investigation of Allentown McGinty won the primary and faced Toomey in the general election on November 8, 2016 Toomey defeated McGinty and retained the seat

South Carolina

Main article: United States Senate election in South Carolina, 2016

Two-term Republican Senator Jim DeMint Republican was re-elected with 61% of the vote in 2010 He resigned at the start of 2013 to become President of The Heritage Foundation and US Representative Tim Scott Republican of South Carolina's 1st congressional district was appointed to replace DeMint by Governor Nikki Haley

Scott subsequently won the special election in 2014 for the remaining two years of the term Scott ran for re-election and he was a potential Republican vice presidential nominee

Other potential Republican candidates include Congressmen Mick Mulvaney, Jeff Duncan and Mark Sanford, along with State Senator Tom Davis, State Treasurer Curtis Loftis and State Attorney General Alan Wilson Darla Moore was mentioned as a potential candidate for either party

On the Democratic side, pastor Thomas Dixon ran in the general primary on November 8, 2016 but was defeated by the incumbent, Scott

South Dakota

Main article: United States Senate election in South Dakota, 2016

Two-term Senator John Thune Republican ran unopposed and was re-elected with 100% in 2010 He ran unopposed for re-election in 2016

Jay Williams, Chair of the Yankton County Democratic Party, and candidate for the State House in 2010 and 2014, is running for the Democratic nomination Other potential Democratic candidates include State Senator Bernie Hunhoff and filmmaker and former television news producer Sam Hurst

Former US Representative Stephanie Herseth Sandlin, Sioux Falls Mayor Mike Heuther, and 2014 nominee Rick Weiland all declined to run

Utah

Main article: United States Senate election in Utah, 2016

One-term Senator Mike Lee Republican was elected with 62% of the vote in 2010 He was 45 years old in 2016 He ran for re-election State party chair Thomas Wright, former State Senator Dan Liljenquist, State Senator Aaron Osmond, Congressman Jason Chaffetz, Congressman Chris Stewart, former Governor of Utah Mike Leavitt, and Mitt Romney's son Josh Romney were mentioned as potential primary challengers, but all declined to run Lee ran unopposed at the Utah Republican convention and is the Republican nominee

Marriage therapist Jonathan Swinton and grocery store clerk Misty Snow, a transgender woman, ran for the Democratic nomination Snow defeated Swinton by more than 20 percentage points, running to the left of Swinton, criticizing him for supporting limitations on abortion rights She became the first transgender woman to become a major party's nominee for the Senate

Vermont

Main article: United States Senate election in Vermont, 2016

Seven-term Democratic Senator Patrick Leahy was re-elected with 64% of the vote in 2010 Leahy won re-election in 2016, aged 76

Scott Milne, the Republican nominee who narrowly lost the 2014 Vermont gubernatorial election, ran unsuccessfully against Leahy

Washington

Main article: United States Senate election in Washington, 2016

Four-term Senator Patty Murray Democrat was re-elected with 52% of the vote in 2010 She ran successfully for re-election against Republican candidate Chris Vance Congressman Dave Reichert was considered a potential Republican candidate but chose to run for reelection

Wisconsin

Main article: United States Senate election in Wisconsin, 2016

One-term Senator Ron Johnson Republican defeated three-term Senator Russ Feingold Democrat with 52% of the vote in 2010

On May 14, 2015, Feingold announced that he would seek a rematch against Johnson for his former Senate seat Immediately after his announcement, the Democratic Senatorial Campaign Committee endorsed Feingold's candidacy Businesswoman and 2014 gubernatorial nominee Mary Burke has declared that she is not seeking statewide office in 2016

Johnson and Feingold faced each other again, and Johnson again defeated Feingold, in what many observers and pundits considered to be a surprising and uphill victory

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^ "Pizer, known for upholstery, cryonics, is latest McCain foe" Arizona Daily Star November 9, 2015 Retrieved November 9, 2015
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^ "After Obama's Immigration Action, a Blast of Energy for the Tea Party" The New York Times November 25, 2014 Retrieved December 3, 2014
^ a b Nowicki, Dan February 16, 2013 "Is this Sen McCain's last term" The Arizona Republic Retrieved September 21, 2013
^ millansingh September 21, 2015 "Pro-Bernie Candidate for Senate… in Arizona"
^ a b c Cheney, Kyle December 29, 2014 "16 in '16: The new battle for the Senate" Politico Retrieved January 1, 2015
^ Sanders, Rebekah L March 21, 2015 "Gosar won't challenge McCain" The Arizona Republic Retrieved March 24, 2015
^ "Arkansas US Sen John Boozman Having Surgery" ABC News April 22, 2014 Retrieved April 22, 2014
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^ "Curtis Coleman indicates he'll take on incumbent Sen John Boozman" Arkansas Times November 9, 2015 Retrieved November 10, 2015
^ Brantley, Max September 9, 2015 "Conner Eldridge announces plans to run for US Senate" Arkansas Times Retrieved September 21, 2015
^ "Arkansas Libertarians nominate twenty-three candidates, including Frank Gilbert for US Senate" Independent Political Report October 25, 2015 Retrieved November 10, 2015
^ "Candidate Information" Arkansas Secretary of State Retrieved February 4, 2016
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^ "Candidate Information" Arkansas Secretary of State Retrieved February 4, 2016
^ Everett, Burgess January 8, 2015 "Barbara Boxer: Won't run again in 2016" Politico Retrieved January 8, 2015
^ "US Senate - Statewide Results" California Secretary of State Retrieved June 9, 2016
^ Nagourney, Adam; Medina, Jennifer June 8, 2016 "Just How Bad an Election Night Was It for California Republicans" The New York Times Retrieved June 9, 2016
^ a b "Certified List of Candidates for Voter-Nominated Offices" PDF Secretary of State of California April 1, 2016 Retrieved April 5, 2016
^ Cadelago, Christopher April 26, 2015 "Republican Tom Del Beccaro announces US Senate run" The Sacramento Bee
^ "Duf Sundheim enters race for Barbara Boxer's Senate seat" Los Angeles Times September 9, 2015
^ Hrabe, John January 25, 2015 "US Senate 2016: Wyman joins list of GOP longshot candidates" CalNewsroomcom Retrieved March 4, 2016
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^ Horseman, Jeff January 21, 2015 "US SENATE: Done Krampe of Murrieta to seek Barbara Boxer's seat" The Press Enterprise
^ Provost, Lee April 14, 2015 "Palzer, former Kankakeean, makes run for US Senate in his new home of Calif"
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^ Cadelago, Christopher March 5, 2015 "Republican Rocky Chavez launches bid for US Senate seat" Sacramento Bee Retrieved March 15, 2015
^ Cadelago, Christopher February 8, 2016 "Chaves withdraws from US Senate race, will seek re-election to Assembly" Sacramento Bee Retrieved February 11, 2016
^ Marinucci, Carla September 24, 2014 "Carly Fiorina won't rule out run for White House" SF Gate Retrieved September 26, 2014
^ Smith, Heather May 29, 2015 "California Senate candidate: "We're all going to die"" Grist Retrieved June 4, 2015
^ "Results of SurveyUSA Election Poll #22817" SurveyUSA April 4, 2016 Retrieved April 5, 2016
^ Frank, John January 14, 2016 "Robert Blaha announces US Senate bid, makes campaign pledge" The Denver Post Retrieved January 21, 2016
^ "Former Aurora councilman Ryan Frazier joins GOP Senate race in Colorado" Aurora Sentinel November 12, 2015 Retrieved November 13, 2015
^ Matthews, Mark January 20, 2016 "El Paso County's Peg Littleton joins US Senate race" The Denver Post Retrieved January 21, 2016
^ Lyell, Kelly January 29, 2016 "Former CSU AD Jack Graham enters US Senate race" Fort Collins Coloradoan Retrieved February 1, 2016
^ "Jon Keyser announces 2016 Senate bid amid crowded Colorado field" The Denver Post January 11, 2016 Retrieved January 11, 2016
^ Bartels, Lynn July 6, 2015 "Republican Greg Lopez, former SBA director, to run for US Senate" The Denver Post Retrieved October 14, 2015
^ Frank, John September 28, 2015 "Tim Neville to announce US Senate bid as GOP race heats up" The Denver Post Retrieved September 29, 2015
^ Bunch, Joey December 9, 2015 "Jefferson County commissioner to join race for US Senate Thursday" The Denver Post Retrieved December 17, 2015
^ "Donald Rosier - Timeline Photos" December 7, 2015
^ a b Frank, John June 28, 2016 "Darryl Glenn takes Colorado Republican nomination for US Senate" The Denver Post Retrieved June 29, 2016
^ Vigdor, Neil April 12, 2016 "Darien fashion label founder Orchulli to run for Senate" The Connecticut Post Retrieved April 16, 2016
^ Radelat, Ana May 4, 2015 "Stamford Republican steps up to challenge Blumenthal" the CT Mirror Retrieved May 15, 2015
^ Vigdor, Neil May 1, 2015 "Visconti exploring 2016 Senate run" Connecticut Post
^ Hawkins, Dustin September 30, 2014 "Democratic Seats up for Re-Election in 2016" About News Retrieved October 3, 2014
^ Vigdor, Neil March 23, 2015 "Walker won't challenge Blumenthal for Senate" Connecticut Post Retrieved March 25, 2015
^ Vigdor, Neil April 8, 2015 "Simmons rules out 2016 challenge of Blumenthal" Connecticut Post Retrieved April 9, 2015
^ Everett, Burgess January 14, 2016 "Kudlow said to be 'very interested' in Senate run" Politico Retrieved January 26, 2016
^ Byers, Dylan February 16, 2016 "CNBC's Larry Kudlow will not run for Senate" CNNMoney Retrieved February 18, 2016
^ Berman, Matt April 2, 2014 "Marco Rubio Won't Run for Senate in 2016 if He Runs for President" National Journal Retrieved April 2, 2014
^ "Marco Rubio tells donors he's running for president in 2016" CBS News April 13, 2015 Retrieved April 13, 2015
^ Perry, Mitch July 8, 2015 "Entrepreneur and combat veteran Todd Wilcox enters Florida's US Senate race" Saint Peters Blog
^ Wallace, Jeremy February 24, 2016 "Cuban-American developer Carlos Beruff launching campaign for US Senate in Miami" Miami Herald Retrieved February 26, 2016
^ "Katz for US Congress" Retrieved March 1, 2016
^ "US Elections -- Florida" Retrieved March 1, 2016
^ "2016 Florida Elections" Retrieved March 1, 2016
^ Bash, Dana March 2, 2016 "GOP operatives to pitch Ben Carson on Florida Senate run" CNN Retrieved March 2, 2016
^ Kopan, Tal June 17, 2016 "David Jolly drops out of Florida Senate race, possibly clearing way for Marco Rubio" CNN Retrieved June 18, 2016
^ "Rubio defeats Murphy to retain Senate seat" November 9, 2016
^ Rappeport, Alan June 10, 2015 "Johnny Isakson, Georgia Senator, Says He Has Parkinson's" The New York Times Retrieved June 12, 2015
^ Foody, Kathleen March 11, 2016 "Qualifying for Georgia's May primaries ends" WSB TV Retrieved April 19, 2016
^ Malloy, Daniel January 9, 2015 "It looks like Johnny Isakson has his first challenger" The Atlanta Journal-Constitution Retrieved May 15, 2015
^ a b Bluestein, Greg May 24, 2016 "Johnny Isakson trounces rivals to win Georgia GOP Senate nod" The Atlanta Journal Constitution Retrieved June 16, 2016
^ "Southwest Georgia's congressional delegation qualifies for re-election" The Albany Herald March 8, 2016 Retrieved March 10, 2016
^ Bluestein, Greg March 6, 2016 "More Democrats come out of woodwork for Georgia Senate race" The Atlanta Journal-Constitution Retrieved April 19, 2016
^ Hankerson, Jazmyne April 8, 2016 "Candidate changes affects May primary ballot" WXFL Retrieved April 20, 2016
^ Stephen O'Harrow August 18, 2014 "Dan Inouye and Brian Schatz: A Lesson in Hawaii Politics" Honolulu Civil Beat
^ Blair, Chad March 14, 2015 "Tulsi Gabbard Looks to Be Running for Re-election" Honolulu Civil Beat
^ "Charles Collins for US Senate" January 22, 2016
^ "Charles Collins" January 25, 2016
^ "Crapo's Message To Labrador" The Spokesman-Review August 20, 2014 Retrieved September 3, 2014
^ Easley, Jonathan February 13, 2015 "Labrador won't run for Senate" The Hill Retrieved February 16, 2015
^ Brown, Nathan August 12, 2015 "Federal Land, Refugees, and Regulations Drive Crapo Town Hall in Castleford" Twin Falls Times-News Retrieved March 4, 2016
^ "Pro-Life For Governor of Idaho – 2014, also US Senate – 2016" Retrieved March 4, 2016
^ "Official Primary Election Statewide Totals" Idaho Secretary of State Retrieved July 20, 2016
^ O'Keefe, Ed January 3, 2013 "Mark Kirk makes dramatic return to the Senate" The Washington Post Retrieved July 17, 2014
^ Cooper, Matthew June 28, 2013 "Mark Kirk Survived a Stroke – Now He's Picking Fights in Congress" National Journal Archived from the original on July 1, 2013 Retrieved July 17, 2014
^ Cahn, Emily June 12, 2013 "Illinois Options Depend on Chicago Turnover Farm Team" Roll Call Retrieved August 14, 2013
^ Cahn, Emily November 14, 2014 "Mark Kirk: 'No Frickin' Way Am I Retiring'" Roll Call Retrieved January 1, 2015
^ Mike Riopell November 30, 2015 "Who's in, who's out in congressional primaries" Daily Herald Retrieved December 1, 2015
^ Greg Hinz October 5, 2015 "Kirk picks up primary challenger from the right" Crain's Chicago Business
^ Rick Pearson; Hal Dardick December 1, 2015 "US Senate, state's attorney races take shape on the last day of filing" Chicago Tribune Retrieved December 1, 2015
^ "1 of Sen Kirk's GOP primary opponents doesn't make ballot" KTVI January 8, 2016 Retrieved January 17, 2016
^ a b "2016 Illinois Primary Election Results" WBEZ 915 Chicago March 15, 2016 Retrieved March 18, 2016
^ Skiba, Katherine March 30, 2015 "Duckworth to Challenge Kirk for US Senate" Chicago Tribune Retrieved March 30, 2015
^ Sneed, Michael May 14, 2015 "Andrea Zopp is all in for Senate race"
^ Hinz, Greg October 27, 2015 "State Sen Napoleon Harris to enter race against Mark Kirk"
^ "2016 Illinois Election, Primary, Candidates, Races, and Voting" USElections December 2, 2015 Retrieved December 3, 2015
^ "Jim Brown Independent for US Senate" Retrieved December 3, 2015
^ "Chris Aguayo for United States Senate" Retrieved June 15, 2016
^ Cheney, Kyle March 24, 2015 "Democrats see glimmer of hope in Dan Coats' retirement" Politico Retrieved March 28, 2015
^ "Rep Marlin Stutzman declares Senate bid" Real Clear Politics May 13, 2015 Retrieved May 16, 2015
^ Joseph, Cameron March 26, 2015 "Chief of staff launches Senate bid for Coats's seat" The Hill
^ "Eric Holcomb drops out of Senate race" WRTV February 8, 2016 Retrieved February 11, 2016
^ "Baron Hill says he will run for US Senate in 2016" The Republic Columbus, Indiana May 14, 2015 Retrieved May 15, 2015
^ Groppe, Maureen August 15, 2015 "John Dickerson to seek nod for US Senate" Indianapolis Star Retrieved October 14, 2015
^ "John Dickerson Drops Out of Race For US Senate" January 21, 2016 Retrieved January 21, 2016
^ Livingston, Abby September 20, 2013 "Grassley Planning to Run Again in 2016" Roll Call Retrieved September 20, 2013
^ Jacobs, Jennifer; Noble, Jason March 31, 2015 "And he's off: Event kicks off Grassley's re-election campaign" The Des Moines Register Retrieved March 31, 2015
^ Porter, Jake January 19, 2016 "Primary Challenger Announces Against Grassley" Iowa Free Press Retrieved February 18, 2016
^ "IA-Sen: Robert Rees ends GOP primary challenge to Chuck Grassley" Bleeding Heartland March 15, 2016 Retrieved April 19, 2016
^ "Cedar Rapids State Sen Rob Hogg running for US Senate" KCRG 9 Cedar Rapids, Iowa September 23, 2015 Retrieved September 23, 2015
^ "Tom Fiegen for US Senate, Iowa" Retrieved November 12, 2015
^ "Bob Krause for Iowa's Future" Retrieved February 12, 2016
^ Lynch, James Q November 7, 2015 "Zirkelbach is fourth candidate in Democratic US Senate race" The Gazette Retrieved February 20, 2016
^ Levinson, Alexis July 29, 2014 "In Kansas, Conservatives Suffer From Mississippi Hangover" Roll Call Retrieved September 11, 2014
^ Levinson, Alexis January 8, 2015 "Congressman Says Wife Nixed Senate Run" Roll Call Retrieved January 8, 2015
^ Mason, Tori December 1, 2015 "Topeka native announces candidacy for US Senate" WIBW Retrieved March 10, 2016
^ Peters, Jeremy W; Rappeport, Alan April 7, 2015 "Rand Paul Announces Presidential Run" The New York Times Retrieved April 13, 2015
^ a b Meyer, Theodoric August 22, 2015 "Kentucky GOP greenlights joint Senate, presidential run for Rand Paul" Politico Retrieved August 23, 2015
^ CNN, John King, Manu Raju and Mark Preston "Rand Paul dropping out of presidential race" cnncom Retrieved July 25, 2016
^ a b "Candidate Filings with the Office of the Secretary of State" Secretary of State of Kentucky Archived from the original on November 22, 2015
^ "Unofficial Results" Kentucky Secretary of State Retrieved May 18, 2016
^ "Democratic mayor to challenge GOP's Rand Paul in Senate race" Associated Press January 27, 2016 Retrieved January 27, 2016
^ "Ron Leach Will Run For US Senate In Kentucky" Hillbilly Report January 14, 2016 Retrieved January 26, 2016
^ "Lexington Mayor Jim Gray running against US Sen Rand Paul" Lexington Herald-Leader January 27, 2016 Retrieved January 27, 2016
^ "The Latest: Vitter Says Won't Run for US Senate in 2016" ABC News November 21, 2015 Retrieved November 21, 2015
^ Berry, Deborah November 25, 2015 "Rep Charles Boustany will run for Senate" The Advertiser Retrieved December 9, 2015
^ O'Donoghue, Julia December 7, 2015 "Louisiana Congressman John Fleming launches bid for David Vitter's Senate seat" The Times-Picayune Retrieved December 9, 2015
^ Richard Rainey December 16, 2015 "Joseph Cao enters Senate race for Vitter's seat, tells supporters by email" The Times-Picayune Retrieved January 14, 2016
^ "Maness officially joins Senate race" WWL AM870 January 29, 2016 Retrieved January 29, 2016
^ a b Alford, Jeremy December 22, 2015 "More possibilities surface for Louisiana's US Senate race" Greater Baton Rouge Business Report Retrieved February 4, 2016
^ Alford, Jeremy December 7, 2015 "Names floating in, out of developing US Senate race" Houma Today Retrieved March 4, 2016
^ Tidmore, Christopher December 7, 2015 "Young, Cazayoux and Hebert consider Vitter's US Senate seat" The Louisiana Weekly Retrieved March 4, 2016
^ Alford, Jeremy March 23, 2016 "New names still hover over Senate race" The Independent Retrieved April 20, 2016
^ Crisp, Elizabeth February 4, 2016 "Democrat Caroline Fayard launches US Senate bid" The Advocate Retrieved February 5, 2016
^ Stickney, Ken March 28, 2016 "Pellerin announcement comes April 5" The Daily Advertiser Retrieved April 20, 2016
^ Stickney, Ken January 25, 2016 "Pellerin to explore Senate campaign" The Daily Advertiser Retrieved March 4, 2016
^ Hilburn, Greg January 6, 2016 "Alexandria Mayor, state Rep Johnson consider Senate run" The News-Star
^ Ballard, Mark December 19, 2015 "Political Horizons: Despite campaign fatigue, a crowded, close Senate race looms" The Advocate
^ Rainey, Richard December 10, 2015 "Louisiana Senate race: who's in, who's out in the early going" 2015 NOLA Media Group The Times-Picayune Retrieved December 16, 2015
^ Mettler, Katie November 9, 2016 "Republican, Democrat head to runoff in Louisiana Senate race" Washington Post Retrieved November 9, 2016
^ Bolton, Alexander November 28, 2014 "2016 retirements could complicate Dems' comeback plans" The Hill Retrieved December 1, 2014
^ "Edwards jumps into Maryland Senate race" Politico March 10, 2015 Retrieved May 16, 2015
^ a b "Maryland: The State Board of Election, 2016 candidate listing" Retrieved February 3, 2016
^ Fritze, John August 24, 2015 "Richard Douglas first Republican to enter Md Senate race" Baltimore Sun
^ "Openly gay Republican explores bid for Senate seat from Md" May 18, 2015 Retrieved October 29, 2015
^ Stinson, Jim July 15, 2014 "Akin won't rule out 2016 run against Blunt" Springfield News-Leader Retrieved November 13, 2014
^ Breitman, Kendall February 26, 2015 "Akin: I'm not running for Senate" Politico Retrieved February 26, 2015
^ Rivas, Rebecca February 11, 2016 "Black challengers of Democrat incumbents fight with party over access" The St Louis American Retrieved February 16, 2016
^ "Cori Bush for US Senate" Retrieved February 16, 2016
^ Sheeley, Andrew February 25, 2016 "Wana Dubie officially first US Senate candidate from Salem" The Salem News Retrieved February 27, 2016
^ Cillizilla, Chris September 19, 2013 "Missouri Gov Jay Nixon steps forward, but toward what" The Washington Post Retrieved April 8, 2014
^ "Missouri Treasurer Zweifel won't run for office" Kansas City Star November 18, 2013 Retrieved November 19, 2013
^ Hulse, Carl March 27, 2015 "Harry Reid Says He Won't Seek Re-election" The New York Times
^ Kudialis, Chris March 18, 2016 "Angle to make another bid for Reid's Senate seat" Las Vegas Sun Retrieved April 20, 2016
^ "Ayotte Faces Primary Challenge From Former GOP State Senator" nhpr March 8, 2016 Retrieved March 9, 2016
^ "Jim Rubens to challenge incumbent Sen Ayotte in GOP primary" New Hampshire Union-Leader March 5, 2016 Retrieved March 9, 2016
^ DiSasto, John November 15, 2014 "Analysis: NH Democrats already have deep bench for top races in 2016" NHJournal
^ DeBonis, Mike March 30, 2015 "Senate's top Dems all agree: Chuck Schumer should be next party leader" The Washington Post Retrieved May 26, 2015
^ a b Dicker, Fredric U April 6, 2015 "Top Republican candidates to challenge Chuck Schumer" New York Post Retrieved April 7, 2015
^ Johnson, Eliana June 24, 2015 "Larry Kudlow and NRSC Renew Discussions on Senate Run" National Review Retrieved June 25, 2015
^ Weiner, Mark April 7, 2015 "US Rep Richard Hanna says he won't run against Chuck Schumer in 2016 NY senate race" Syracusecom Retrieved April 7, 2015
^ Cahn, Emily December 11, 2013 "Opportunities Now and Later in North Carolina" Roll Call Retrieved December 11, 2013
^ "Sen Burr confirms he will run in 2016" WNCN January 6, 2015 Retrieved January 8, 2015
^ Colin Campbell December 21, 2015 "Republican Greg Brannon challenges Richard Burr in second Senate bid" The News & Observer Retrieved December 31, 2015
^ Sarah Krueger September 24, 2015 "Larry Holmquist enters Senate race, challenging Richard Burr" Retrieved December 1, 2015
^ "Former judge Wright running for Burr's Senate seat" Asheville Citizen-Times September 11, 2015 Retrieved December 1, 2015
^ "NC SBE Contest Results" Retrieved March 18, 2016
^ Woolverton, Paul September 21, 2015 "Spring Lake Mayor Chris Rey announces run for US Senate" Fayetteville Observer Retrieved September 21, 2015
^ Leslie, Laura October 15, 2015 "Durham businessman joining Dem field in US Senate race" WRAL
^ "Ernest Reeves for US Senate" Retrieved December 31, 2015
^ Cillizza, Chris June 24, 2015 "Democrats' Senate hopes take a hit with Kay Hagan's no-go decision" The Washington Post Retrieved June 30, 2015
^ Jarvis, Craig April 14, 2015 "Cowell seeking third term as NC treasurer" The News & Observer Retrieved April 14, 2015
^ Cohen, Kelly September 17, 2014 "Foxx won't run for Senate in 2016" The Washington Examiner Retrieved October 2, 2014
^ "NC SBE Contest Results" Retrieved March 18, 2016
^ Nowatzki, Mike April 2, 2016 "ND Democrat Glassheim says he's healthy and ready to run for US Senate" The Forum of Fargo-Moorhead Forum Communications Retrieved April 4, 2016
^ Torry, Jack May 19, 2015 "Portman has conservative primary challenger" The Columbus Dispatch
^ Johnson, Alan January 1, 2016 "Martin O'Malley won't appear on Ohio's primary ballot" The Columbus Dispatch Retrieved January 14, 2016
^ Coolidge, Sharon "Sittenfeld: Yes, I'm running for US Senate" The Cincinnati Enquirer Retrieved January 22, 2015
^ Wehrman, Jessica; Torry, Jack February 25, 2015 "Ted Strickland says swift GOP attacks in Senate race are a 'compliment'" The Columbus Dispatch Retrieved March 9, 2015
^ Rowland, Darrell; Ludlow, Randy December 16, 2015 "Kasich joins GOP competitors in filing for Ohio primary" The Columbus Dispatch
^ Vardon, Joe May 8, 2013 "Ohio legislator to challenge Portman in '16" The Columbus Dispatch Retrieved September 20, 2013
^ "Who will face Portman in '16" The Columbus Dispatch January 2, 2015 Retrieved January 10, 2015
^ Taylor, Jessica January 17, 2014 "Crowded primary likely in race for Coburn seat" The Hill Retrieved January 17, 2014
^ "US Senate seat goes to Republican James Lankford" Roll Call November 4, 2014 Retrieved November 21, 2014
^ Dallas Franklin; Leslie Rangel November 4, 2014 "US Senate seat goes to Republican James Lankford" KFOR Retrieved May 22, 2015
^ Mann, Damian September 21, 2015 "Medford Councilor Stine to challenge Sen Ron Wyden" Mail Tribune Retrieved September 21, 2015
^ a b "Who's running for president, Oregon governor, other seats The latest on 2016 candidates" The Oregonian November 17, 2015 Retrieved March 9, 2016
^ Hammers, Scott February 5, 2016 "Bend businessman Carpenter to run for Senate" The Bend Bulletin Retrieved March 9, 2016
^ "Laschober for US Senate"
^ Dubois, Steven November 11, 2015 "Oregon county commissioner Faye Stewart to run for US Senate" KATU Retrieved December 3, 2015
^ Stern, Everett January 26, 2015 "After serious consideration, I have made the decision to run for the PA United States Senate seat " Facebook Retrieved April 5, 2015
^ Weiner, Rachel "Joe Sestak planning Senate campaign" The Washington Post Retrieved October 22, 2013
^ Maher, Chris September 14, 2015 "Steel Town Mayor John Fetterman Enters Pennsylvania Senate Race" WSJ
^ "John fetterman" whitehousegov Retrieved July 25, 2016
^ "Joseph Vodvarka for US Senate 2016" Montco Area 4 Democrats December 28, 2015 Retrieved February 18, 2016
^ Tamari, Jonathan; Roebuck, Jeremy July 6, 2015 "Pawlowski halts Senate bid, Democrats seek options" The Philadelphia Inquirer Retrieved July 8, 2015
^ Zeleny, Jeff December 17, 2012 "Rep Tim Scott Chosen to Replace Jim DeMint as South Carolina Senator" The New York Times
^ a b c Livingston, Abby February 12, 2014 "South Carolina Republicans Will Have to Ride the Bench" Roll Call Retrieved April 2, 2014
^ Cillizza, Chris December 17, 2012 "Tim Scott and the changing face of the Republican party" The Washington Post Retrieved April 2, 2014
^ Jaffe, Greg May 28, 2013 "As budget cuts hit SC, a congressman is surprised at constituents' reactions" The Washington Post
^ Lawrence, Tom July 1, 2015 "Will anyone take on Thune in 2016" Prairie Perspective Retrieved August 27, 2015
^ Woster, Kevin August 24, 2015 "Hurst for US Senate in 2016 Well " KELO-TV Retrieved August 27, 2015
^ Tupper, Seth December 14, 2015 "Thune frolicking through another opponent-less election season" Rapid City Journal Retrieved February 20, 2016
^ "Rick Weiland returns with new nonpartisan political group" Rapid City Journal March 18, 2015 Retrieved May 20, 2015
^ Gehrke, Robert October 10, 2013 "Most Utahns disapprove of Sen Mike Lee, want him to compromise" Salt Lake Tribune Archived from the original on October 10, 2013 Retrieved November 8, 2014
^ Rucker, Philip October 22, 2013 "In Utah, tea party favorite Sen Lee faces GOP backlash over government shutdown" The Washington Post Retrieved November 8, 2014
^ Livingston, Abby April 2, 2014 "Next Utah Races to Watch Are for Senate" Roll Call Retrieved April 3, 2014
^ Canham, Matt April 12, 2015 "Mike Lee could be a lock for re-election to the Senate" The Salt Lake Tribune Retrieved February 4, 2016
^ Roche, Lisa Riley April 21, 2015 "Josh Romney: I won't run against Sen Mike Lee, but another Republican should" Deseret News
^ Price, Michelle April 23, 2016 "Utah Gov Herbert fails to secure nomination at convention" SunHerald Retrieved April 27, 2016
^ Canham, Matt August 17, 2015 "Sen Mike Lee's first challenger is marriage therapist Jonathan Swinton, an untested Democrat" The Salt Lake Tribune
^ Nelson, Louis June 2016 "Two transgender candidates named 'Misty' win primaries" Politicocom Retrieved June 29, 2016
^ Heintz, Paul October 5, 2015 "Scott Milne Considers Challenging Patrick Leahy" Seven Days
^ Gram, Dave May 26, 2016 "Milne hopes to unseat Sen Leahy" The Burlington Free Press Retrieved May 27, 2016
^ Joseph, Cameron August 9, 2013 "Rep Reichert 'thinking about' run for Senate, governor in Washington" The Hill Retrieved April 7, 2014
^ Brunner, Jim October 16, 2015 "Dave Reichert won't run against Jay Inslee for governor" The Seattle Times Retrieved November 1, 2015
^ "DSCC Announces Endorsement Of Russ Feingold In Wisconsin Senate Race" May 14, 2015
^ "Mary Burke says she won't run for statewide office again" Wisconsin State Journal November 10, 2014 Retrieved November 10, 2014

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