State |
Name |
Party |
Elect 2012 |
First Year |
Term Expires |
Alabama |
Jefferson B. Sessions, III |
Republican |
|
1997 |
2015 |
Alabama |
Richard C. Shelby |
Republican |
|
1987 |
2017 |
Alaska |
Mark P. Begich |
Democratic |
|
2009 |
2015 |
Alaska |
Lisa Murkowski |
Republican |
|
2002 |
2017 |
Arizona |
Jeffrey L. Flake |
Republican |
• |
2013 |
2019 |
Arizona |
John S. McCain, III |
Republican |
|
1987 |
2017 |
Arkansas |
Mark Pryor |
Democratic |
|
2003 |
2015 |
Arkansas |
John Boozman |
Republican |
|
2011 |
2017 |
California |
Dianne G. B. Feinstein |
Democratic |
• |
1992 |
2019 |
California |
Barbara L. Boxer |
Democratic |
|
1993 |
2017 |
Colorado |
Mark Udall |
Democratic |
|
2009 |
2015 |
Colorado |
Michael Bennet |
Democratic |
|
2009 |
2017 |
Connecticut |
Christopher S. Murphy |
Democratic |
• |
2013 |
2019 |
Connecticut |
Richard Blumenthal |
Democratic |
|
2011 |
2017 |
Delaware |
Thomas R. Carper |
Democratic |
• |
2001 |
2019 |
Delaware |
Christopher Coons |
Democratic |
|
2010 |
2015 |
Florida |
C. William Nelson |
Democratic |
• |
2001 |
2019 |
Florida |
Marco Rubio |
Republican |
|
2011 |
2017 |
Georgia |
C. Saxby Chambliss |
Republican |
|
2003 |
2015 |
Georgia |
John Isakson |
Republican |
|
2005 |
2017 |
Hawaii |
Mazie Hirono |
Democratic |
• |
2013 |
2019 |
Hawaii |
Daniel K. Inouye |
Democratic |
|
1963 |
2017 |
Idaho |
James E. Risch |
Republican |
|
2009 |
2015 |
Idaho |
Michael D. Crapo |
Republican |
|
1999 |
2017 |
Illinois |
Richard J. Durbin |
Democratic |
|
1997 |
2015 |
Illinois |
Mark S. Kirk |
Republican |
|
2010 |
2017 |
Indiana |
Joseph S. Donnelly, Sr |
Democratic |
• |
2013 |
2019 |
Indiana |
Daniel R. Coats |
Republican |
|
2011 |
2017 |
Iowa |
Thomas R. Harkin |
Democratic |
|
1985 |
2015 |
Iowa |
Charles E. Grassley |
Republican |
|
1981 |
2017 |
Kansas |
C. Patrick Roberts |
Republican |
|
1997 |
2015 |
Kansas |
Jerry Moran |
Republican |
|
2011 |
2017 |
Kentucky |
A. Mitchell McConnell, Jr. |
Republican |
|
1985 |
2015 |
Kentucky |
Rand Paul |
Republican |
|
2011 |
2017 |
Louisiana |
Mary L. Landrieu |
Democratic |
|
1997 |
2015 |
Louisiana |
David Vitter |
Republican |
|
2005 |
2017 |
Maine |
Angus S. King, Jr. |
Independent |
• |
2013 |
2019 |
Maine |
Susan M. Collins |
Republican |
|
1997 |
2015 |
Maryland |
Benjamin L. Cardin |
Democratic |
• |
2007 |
2019 |
Maryland |
Barbara A. Mikulski |
Democratic |
|
1987 |
2017 |
Massachusetts |
Elizabeth Warren |
Democratic |
• |
2013 |
2019 |
Massachusetts |
John F. Kerry |
Democratic |
|
1985 |
2015 |
Michigan |
Debbie A. Stabenow |
Democratic |
• |
2001 |
2019 |
Michigan |
Carl M. Levin |
Democratic |
|
1979 |
2015 |
Minnesota |
Amy Klobuchar |
Democratic |
• |
2007 |
2019 |
Minnesota |
Alan S. Franken |
Democratic |
|
2009 |
2015 |
Mississippi |
Roger F. Wicker |
Republican |
• |
2007 |
2019 |
Mississippi |
W. Thad Cochran |
Republican |
|
1979 |
2015 |
Missouri |
Claire McCaskill |
Democratic |
• |
2007 |
2019 |
Missouri |
Roy Blunt |
Republican |
|
2011 |
2017 |
Montana |
Jon Tester |
Democratic |
• |
2007 |
2019 |
Montana |
Max S. Baucus |
Democratic |
|
1979 |
2015 |
Nebraska |
Debra S. Fischer |
Republican |
• |
2013 |
2019 |
Nebraska |
Michael O. Johanns |
Republican |
|
2009 |
2015 |
Nevada |
Dean A. Heller 1 |
Republican |
• |
2011 |
2019 |
Nevada |
Harry M. Reid |
Democratic |
|
1987 |
2017 |
New Hampshire |
Jeanne Shaheen |
Democratic |
|
2009 |
2015 |
New Hampshire |
Kelly Ayotte |
Republican |
|
2011 |
2017 |
New Jersey |
Robert Menendez |
Democratic |
• |
2006 |
2019 |
New Jersey |
Frank R. Lautenberg |
Democratic |
|
2003 |
2015 |
New Mexico |
Martin T. Heinrich |
Democratic |
• |
2013 |
2019 |
New Mexico |
Thomas S. Udall |
Democratic |
|
2009 |
2015 |
New York |
Kirsten Gillibrand |
Democratic |
• |
2009 |
2019 |
New York |
Charles E. Schumer |
Democratic |
|
1999 |
2017 |
North Carolina |
Kay R. Hagin |
Democratic |
|
2009 |
2015 |
North Carolina |
Richard M. Burr |
Republican |
|
2005 |
2017 |
North Dakota |
Mary K. 'Heidi' Heitkamp |
Democratic |
• |
2013 |
2019 |
North Dakota |
John Hoeven |
Republican |
|
2011 |
2017 |
Ohio |
Sherrod Brown |
Democratic |
• |
2007 |
2019 |
Ohio |
Rob Portman |
Republican |
|
2011 |
2017 |
Oklahoma |
James Inhofe |
Republican |
|
1994 |
2015 |
Oklahoma |
Tom Coburn |
Republican |
|
2005 |
2017 |
Oregon |
Jeffrey A. Merkley |
Democratic |
|
2009 |
2015 |
Oregon |
Ronald L. Wyden |
Democratic |
|
1996 |
2017 |
Pennsylvania |
Robert Casey, Jr. |
Democratic |
• |
2007 |
2019 |
Pennsylvania |
Pat Toomey |
Republican |
|
2011 |
2017 |
Rhode Island |
Sheldon Whitehouse |
Democratic |
• |
2007 |
2019 |
Rhode Island |
John F. Reed |
Democratic |
|
1997 |
2015 |
South Carolina |
Lindsey O. Graham |
Republican |
|
2003 |
2015 |
South Carolina |
Jim DeMint |
Republican |
|
2005 |
2017 |
South Dakota |
Timothy P. Johnson |
Democratic |
|
1997 |
2015 |
South Dakota |
John R. Thune |
Republican |
|
2005 |
2017 |
Tennessee |
Robert P. 'Bob' Corker, Jr. |
Republican |
• |
2007 |
2019 |
Tennessee |
Lamar A. Alexander |
Republican |
|
2003 |
2015 |
Texas |
Rafael E. 'Ted' Cruz |
Republican |
• |
2013 |
2019 |
Texas |
John Cornyn |
Republican |
|
2002 |
2015 |
Utah |
Orrin G. Hatch |
Republican |
• |
1977 |
2019 |
Utah |
Mike Lee |
Republican |
|
2011 |
2017 |
Vermont |
Bernard Sanders |
Independent |
• |
2007 |
2019 |
Vermont |
Patrick J. Leahy |
Democratic |
|
1975 |
2017 |
Virginia |
Timothy M. Kaine |
Democratic |
• |
2013 |
2019 |
Virginia |
Mark Warner |
Democratic |
|
2009 |
2015 |
Washington |
Maria Cantwell |
Democratic |
• |
2001 |
2019 |
Washington |
Patricia Murray |
Democratic |
|
1993 |
2017 |
West Virginia |
Joe Manchin, III |
Democratic |
• |
2010 |
2019 |
West Virginia |
John D. Rockefeller, IV |
Democratic |
|
1985 |
2015 |
Wisconsin |
Tammy Baldwin |
Democratic |
• |
2013 |
2019 |
Wisconsin |
Ron Johnson |
Republican |
|
2011 |
2017 |
Wyoming |
John A. Barrasso |
Republican |
• |
2007 |
2019 |
Wyoming |
Michael B. Enzi |
Republican |
|
1997 |
2015 |
Notes: 1: Appointed in 2011 to fill the seat vacated by the resignation of John Ensign
|