May 3, 2015

Senate Seniority List —
114th Congress

Republicans
Orrin G. Hatch, UtahJan. 4, 1977
Thad Cochran, Miss.Dec. 27, 1978
Charles E. Grassley, IowaJan. 5, 1981
Mitch McConnell, Ky.Jan. 3, 1985
Richard C. Shelby, Ala.Jan. 6, 1987
John McCain, Ariz.Jan. 6, 1987
James M. Inhofe, Okla.Nov. 30, 1994
Pat Roberts, Kan.Jan. 7, 1997
Jeff Sessions, Ala.Jan. 7, 1997
Susan Collins, MaineJan. 7, 1997
Michael B. Enzi, Wyo.Jan. 7, 1997
Michael D. Crapo, IdahoJan. 6, 1999
Lisa Murkowski, AlaskaDec. 20, 2002
Lindsey Graham, S.C.Jan. 7, 2003
Lamar Alexander, Tenn.Jan. 7, 2003
John Cornyn, TexasJan. 7, 2003
Richard M. Burr, N.C.Jan. 4, 2005
John Thune, S.D.Jan. 4, 2005
Johnny Isakson, Ga.Jan. 4, 2005
David Vitter, La.Jan. 4, 2005
Bob Corker, Tenn.Jan. 4, 2007
John Barrasso, Wyo.June 25, 2007
Roger Wicker, Miss.Dec. 31, 2007
Jim Risch, IdahoJan. 6, 2009
Mark S. Kirk, Ill.Nov. 29, 2010
Dan Coats, Ind.Jan. 5, 2011
Roy Blunt, Mo.Jan. 5, 2011
Jerry Moran, Kan.Jan. 5, 2011
Rob Portman, OhioJan. 5, 2011
John Boozman, Ark.Jan. 5, 2011
John Hoeven, N.D.Jan. 5, 2011
Marco Rubio, Fla.Jan. 5, 2011
Patrick J. Toomey, Pa.Jan. 5, 2011
Ron Johnson, Wis.Jan. 5, 2011
Rand Paul, Ky.Jan. 5, 2011
Mike Lee, UtahJan. 5, 2011
Kelly Ayotte, N.H.Jan. 5, 2011
Dean Heller, Nev.May 9, 2011
Jeff Flake, Ariz.Jan. 3, 2013
Tim Scott, S.C.Jan. 3, 2013
Ted Cruz, TexasJan. 3, 2013
Deb Fischer, Neb.Jan. 3, 2013
Shelley Moore Capito, W.Va.Jan. 6, 2015
Bill Cassidy, La.Jan. 6, 2015
Cory Gardner, Colo.Jan. 6, 2015
James Lankford, Okla.Jan. 6, 2015
Tom Cotton, Ark.Jan. 6, 2015
Steve Daines, Mont.Jan. 6, 2015
Michael Rounds, S.D.Jan. 6, 2015
David Perdue, Ga.Jan. 6, 2015
Thom Tillis, N.C.Jan. 6, 2015
Joni Ernst, IowaJan. 6, 2015
Ben Sasse, Neb.Jan. 6, 2015
Dan Sullivan, AlaskaJan. 6, 2015
Democrats
Patrick J. Leahy, Vt. Jan. 14, 1975
Barbara A. Mikulski, Md.Jan. 6, 1987
Harry Reid, Nev. Jan. 6, 1987
Dianne Feinstein, Calif.Nov. 4, 1992
Barbara Boxer, Calif.Jan. 5, 1993
Patty Murray, Wash.Jan. 5, 1993
Ron Wyden, Ore.Feb. 6, 1996
Richard J. Durbin, Ill.Jan. 7, 1997
Jack Reed, R.I.Jan. 7, 1997
Charles E. Schumer, N.Y.Jan. 6, 1999
Bill Nelson, Fla.Jan. 3, 2001
Thomas R. Carper, Del.Jan. 3, 2001
Debbie Stabenow, Mich.Jan. 3, 2001
Maria Cantwell, Wash.Jan. 3, 2001
Robert Menendez, N.J.Jan. 18, 2006
Benjamin L. Cardin, Md.Jan. 4, 2007
Sherrod Brown, OhioJan. 4, 2007
Bob Casey, Pa.Jan. 4, 2007
Claire McCaskill, Mo.Jan. 4, 2007
Amy Klobuchar, Minn.Jan. 4, 2007
Sheldon Whitehouse, R.I.Jan. 4, 2007
Jon Tester, Mont.Jan. 4, 2007
Tom Udall, N.M.Jan. 6, 2009
Jeanne Shaheen, N.H.Jan. 6, 2009
Mark Warner, Va.Jan. 6, 2009
Jeff Merkley, Ore.Jan. 6, 2009
Michael Bennet, Colo.Jan. 22, 2009
Kirsten Gillibrand, N.Y.Jan. 27, 2009
Al Franken, Minn.July 7, 2009
Joe Manchin III, W.Va.Nov. 15, 2010
Chris Coons, Del.Nov. 15, 2010
Richard Blumenthal, Conn.Jan. 5, 2011
Brian Schatz, HawaiiDec. 27, 2012
Tammy Baldwin, Wis.Jan. 3, 2013
Joe Donnelly, Ind.Jan. 3, 2013
Christopher S. Murphy, Conn.Jan. 3, 2013
Mazie K. Hirono, HawaiiJan. 3, 2013
Martin Heinrich, N.M.Jan. 3, 2013
Tim Kaine, Va.Jan. 3, 2013
Elizabeth Warren, Mass.Jan. 3, 2013
Heidi Heitkamp, N.D.Jan. 3, 2013
Edward J. Markey, Mass.July 16, 2013
Cory Booker, N.J.Oct. 31, 2013
Gary Peters, Mich.Jan. 6, 2015

Note: Sen. Bernard Sanders, I-Vt., caucuses with the Democrats and his Senate service began on Jan. 4, 2007. Sen. Angus King, I-Maine, also caucuses with the Democrats and his service began on Jan. 3, 2013. Neither senator is included in the Democratic seniority list.


Source: Senate Historical Office. Seniority for senators is determined by length of service and former positions held (Senate, vice president, House, Cabinet member, governor). In the case of a tie, state population determines the order. In a case where two senators from the same state have terms beginning on the same day, seniority is determined alphabetically.