Senate Seniority List: 113th Congress
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 |
All 100 Senators |
Date Service Began |
|
1. |
Patrick J. Leahy, D-Vt. |
Jan. 3, 1975 |
|
2. |
Orrin G. Hatch, R-Utah |
Jan. 3, 1977 |
|
3. |
Thad Cochran, R-Miss. |
Dec. 27, 1978 |
|
4. |
Carl Levin, D-Mich. |
Jan. 3, 1979 |
|
5. |
Charles E. Grassley, R-Iowa |
Jan. 3, 1981 |
|
6. |
Tom Harkin, D-Iowa |
Jan. 3, 1985 |
|
7. |
Mitch McConnell, R-Ky. |
Jan. 3, 1985 |
|
8. |
John D. Rockefeller IV, D-W.Va. |
Jan. 15, 1985 |
|
9. |
Barbara A. Mikulski, D-Md. |
Jan. 3, 1987 |
|
10. |
Richard C. Shelby, R-Ala. |
Jan. 3, 1987 |
|
11. |
John McCain, R-Ariz. |
Jan. 3, 1987 |
|
12. |
Harry Reid, D-Nev. |
Jan. 3, 1987 |
|
13. |
Dianne Feinstein, D-Calif. |
Nov. 4, 1992 |
|
14. |
Barbara Boxer, D-Calif. |
Jan. 3, 1993 |
|
15. |
Patty Murray, D-Wash. |
Jan. 3, 1993 |
|
16. |
James M. Inhofe, R-Okla. |
Nov. 16, 1994 |
|
17. |
Ron Wyden, D-Ore. |
Feb. 6, 1996 |
|
18. |
Pat Roberts, R-Kan. |
Jan. 3, 1997 |
|
19. |
Richard J. Durbin, D-Ill. |
Jan. 3, 1997 |
|
20. |
Tim Johnson, D-S.D. |
Jan. 3, 1997 |
|
21. |
Jack Reed, D-R.I. |
Jan. 3, 1997 |
|
22. |
Mary L. Landrieu, D-La. |
Jan. 3, 1997 |
|
23. |
Jeff Sessions, R-Ala. |
Jan. 3, 1997 |
|
24. |
Susan Collins, R-Maine |
Jan. 3, 1997 |
|
25. |
Michael B. Enzi, R-Wyo. |
Jan. 3, 1997 |
|
26. |
Charles E. Schumer, D-N.Y. |
Jan. 3, 1999 |
|
27. |
Michael D. Crapo, R-Idaho |
Jan. 3, 1999 |
|
28. |
Bill Nelson, D-Fla. |
Jan. 3, 2001 |
|
29. |
Thomas R. Carper, D-Del. |
Jan. 3, 2001 |
|
30. |
Debbie Stabenow, D-Mich. |
Jan. 3, 2001 |
|
31. |
Maria Cantwell, D-Wash. |
Jan. 3, 2001 |
|
32. |
Lisa Murkowski, R-Alaska |
Dec. 20, 2002 |
|
33. |
Saxby Chambliss, R-Ga. |
Jan. 3, 2003 |
|
34. |
Lindsey Graham, R-S.C. |
Jan. 3, 2003 |
|
35. |
Lamar Alexander, R-Tenn. |
Jan. 3, 2003 |
|
36. |
John Cornyn, R-Texas |
Dec. 2, 2002* |
|
37. |
Mark Pryor, D-Ark. |
Jan. 3, 2003 |
|
38. |
Richard M. Burr, R-N.C. |
Jan. 3, 2005 |
|
39. |
Tom Coburn, R-Okla. |
Jan. 3, 2005 |
|
40. |
John Thune, R-S.D. |
Jan. 3, 2005 |
|
41. |
Johnny Isakson, R-Ga. |
Jan. 3, 2005 |
|
42. |
David Vitter, R-La. |
Jan. 3, 2005 |
|
43. |
Robert Menendez, D-N.J. |
Jan. 18, 2006 |
|
44. |
Benjamin L. Cardin, D-Md. |
Jan. 3, 2007 |
|
45. |
Bernie Sanders, I-Vt. |
Jan. 3, 2007 |
|
46. |
Sherrod Brown, D-Ohio |
Jan. 3, 2007 |
|
47. |
Bob Casey, D-Pa. |
Jan. 3, 2007 |
|
48. |
Bob Corker, R-Tenn. |
Jan. 3, 2007 |
|
49. |
Claire McCaskill, Mo. |
Jan. 3, 2007 |
|
50. |
Amy Klobuchar, Minn. |
Jan. 3, 2007 |
|
51. |
Sheldon Whitehouse, R.I. |
Jan. 3, 2007 |
|
52. |
Jon Tester, Mont. |
Jan. 3, 2007 |
|
53. |
John A. Barrasso, R-Wyo. |
June 22, 2007 |
|
54. |
Roger Wicker, R-Miss. |
Dec. 31, 2007 |
|
55. |
Mark Udall, D-Colo. |
Jan. 3, 2009 |
|
56. |
Tom Udall, D-N.M. |
Jan. 3, 2009 |
|
57. |
Mike Johanns, R-Neb. |
Jan. 3, 2009 |
|
58. |
Jeanne Shaheen, D-N.H. |
Jan. 3, 2009 |
|
59. |
Mark Warner, D-Va. |
Jan. 3, 2009 |
|
60. |
Jim Risch, R-Idaho |
Jan. 3, 2009 |
|
61. |
Kay Hagan, D-N.C. |
Jan. 3, 2009 |
|
62. |
Jeff Merkley, D-Ore. |
Jan. 3, 2009 |
|
63. |
Mark Begich, D-Alaska |
Jan. 3, 2009 |
|
64. |
Michael Bennet, D-Colo. |
Jan. 22, 2009 |
|
65. |
Kirsten Gillibrand, D-N.Y. |
Jan. 27, 2009 |
|
66. |
Al Franken, D-Minn. |
Jul. 7, 2009 |
|
67. |
Joe Manchin, D-W. Va. |
Nov. 15, 2010 |
|
68. |
Chris Coons, D-Del. |
Nov. 15, 2010 |
|
69. |
Mark Kirk, R-Ill. |
Nov. 29, 2010 |
|
70. |
Dan Coats, R-Ind. |
Jan. 3, 2011 |
|
71. |
Roy Blunt, R-Mo. |
Jan. 3, 2011 |
|
72. |
Jerry Moran, R-Kan. |
Jan. 3, 2011 |
|
73. |
Rob Portman, R-Ohio |
Jan. 3, 2011 |
|
74. |
John Boozman, R-Ark. |
Jan. 3, 2011 |
|
75. |
Pat Toomey, R-Pa. |
Jan. 3, 2011 |
|
76. |
John Hoeven, R-N.D. |
Jan. 3, 2011 |
|
77. |
Marco Rubio, R-Fla. |
Jan. 3, 2011 |
|
78. |
Ron Johnson, R-Wis. |
Jan. 3, 2011 |
|
79. |
Rand Paul, R-Ky. |
Jan. 3, 2011 |
|
80. |
Richard Blumenthal, D-Conn. |
Jan. 3, 2011 |
|
81. |
Mike Lee, R-Utah. |
Jan. 3, 2011 |
|
82. |
Kelly Ayotte, R-N.H. |
Jan. 3, 2011 |
|
83. |
Dean Heller, R-Nev. |
May 9, 2011 |
|
84. |
Brian Schatz, D-Hawaii. |
Dec. 27, 2012 |
|
85. |
Tim Scott, R-S.C. |
Jan. 3, 2013 |
|
86. |
Tammy Baldwin, D-Wis. |
Jan. 3, 2013 |
|
87. |
Jeff Flake, R-AZ |
Jan. 3, 2013 |
|
88. |
Joe Donnelly, D-Ind. |
Jan. 3, 2013 |
|
89. |
Chris Murphy, D-Conn. |
Jan. 3, 2013 |
|
90. |
Mazie Hirono, D-Hawaii. |
Jan. 3, 2013 |
|
91. |
Martin Heinrich, D-N.M. |
Jan. 3, 2013 |
|
92. |
Angus King (I-ME) |
Jan. 3, 2013 |
|
93. |
Tim Kaine, D-Va. |
Jan. 3, 2013 |
|
94. |
Ted Cruz, R-TX |
Jan. 3, 2013 |
|
95. |
Elizabeth Warren, D-MA |
Jan. 3, 2013 |
|
96. |
Deb Fischer, R-NE |
Jan. 3, 2013 |
|
97. |
Heidi Heitkamp, D-N.D. |
Jan. 3, 2013 |
|
98. |
Edward Markey, D-MA |
Jul. 16, 2013 |
|
99. |
Cory Booker, D-N.J. |
Oct. 31, 2013 |
|
100. |
John Walsh, D-Mont. |
Feb. 11, 2014 |
* 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.