Senate Seniority List – Republicans: 113th Congress
Updated February, 2013
Source: http://www.senate.gov/artandhistory/history/resources/pdf/chronlist.pdf
Senate rank is first determined by the length of consecutive service in the Senate. For senators who entered the Senate on the same day, several tie-breaking procedures determine seniority. In order of precedence, these factors are: previous Senate service, service as the vice president, previous House service; service in the Cabinet, service as a state governor. If a tie still exists, senators are ranked according to the population of their state at the time of swearing in.
Rank Date Service Began
1.
Orrin G. Hatch, Utah Jan. 4, 1977
2.
Thad Cochran, Miss. Dec. 27, 1978
3.
Charles E. Grassley, Iowa Jan. 3, 1981
4.
Mitch McConnell, Ky. Jan. 3, 1985
5.
Richard C. Shelby, Ala. Jan. 3, 1987
6.
John McCain, Ariz. Jan. 3, 1987
7.
James M. Inhofe, Okla. Nov. 16, 1994
8.
Pat Roberts, Kan. Jan. 3, 1997
9.
Jeff Sessions, Ala. Jan. 3, 1997
10.
Susan Collins, Maine Jan. 3, 1997
11.
Michael B. Enzi, Wyo. Jan. 3, 1997
12.
Michael D. Crapo, Idaho Jan. 3, 1999
13.
Lisa Murkowski, Alaska Dec. 20, 2002
14.
Saxby Chambliss, Ga. Jan. 3, 2003
15.
Lindsey Graham, S.C. Jan. 3, 2003
16.
Lamar Alexander, Tenn. Jan. 3, 2003
17.
John Cornyn, Texas Dec. 2, 2002*
18.
Richard M. Burr, N.C. Jan. 3, 2005
19.
Tom Coburn, Okla. Jan. 3, 2005
20.
John Thune, S.D. Jan. 3, 2005
21.
Johnny Isakson, Ga. Jan. 3, 2005
22.
David Vitter, La. Jan. 3, 2005
23.
Bob Corker, Tenn. Jan. 3, 2007
24.
John A. Barrasso, Wyo. June 22, 2007
25.
Roger Wicker, Miss. Dec. 31, 2007
26.
Mike Johanns, Neb. Jan. 3, 2009
27.
Jim Risch, Idaho Jan. 3, 2009
28.
Mark Kirk, Ill. Nov. 29, 2010
29.
Dan Coats, Ind. Jan. 3, 2011
30.
Roy Blunt, Mo. Jan. 3, 2011
31.
Jerry Moran, Kan. Jan. 3, 2011
32.
Rob Portman, Ohio Jan. 3, 2011
33.
John Boozman, Ark. Jan. 3, 2011
34.
Pat Toomey, Pa. Jan. 3, 2011
35.
John Hoeven, N.D. Jan. 3, 2011
36.
Marco Rubio, Fla. Jan. 3, 2011
37.
Ron Johnson, Wis. Jan. 3, 2011
38.
Rand Paul, Ky. Jan. 3, 2011
39.
Mike Lee, Utah. Jan. 3, 2011
40.
Kelly Ayotte, N.H. Jan. 3, 2011
41.
Dean Heller, Nev. May 9, 2011
42.
Tim Scott, S.C. Jan. 3, 2013
43.
Jeff Flake, AZ Jan. 3, 2013
44.
Ted Cruz, TX Jan. 3, 2013
45.
Deb Fischer, NE Jan. 3, 2013
* Phil Gramm resigned early, effective Nov. 30, 2002, so that Cornyn could move into his office suite and begin organizing his staff. Cornyn did not, however, gain seniority, owing to a 1980 Rules Committee policy established by Senator Pell that no longer gave seniority to senators who entered Congress early for the purpose of gaining advantageous office space.