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Senate Seniority

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Senate Seniority List: 116th 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 Charles E. Grassley, R-IA Jan. 3, 1981
3 Mitch McConnell, R-KY Jan. 3, 1985
4 Richard C. Shelby, R-AL Jan. 3, 1987
5 Dianne Feinstein, D-CA Nov. 4, 1992
6 Patty Murray, D-WA Jan. 3, 1993
7 James M. Inhofe, R-OK Nov. 16, 1994
8 Ron Wyden, D-OR Feb. 6, 1996
9 Pat Roberts, R-KS Jan. 3, 1997
10 Richard J. Durbin, D-IL Jan. 3, 1997
11 Jack Reed, D-RI Jan. 3, 1997
12 Susan Collins, R-ME Jan. 3, 1997
13 Michael B. Enzi, R-WY Jan. 3, 1997
14 Charles E. Schumer, D-NY Jan. 3, 1999
15 Michael D. Crapo, R-ID Jan. 3, 1999
16 Thomas R. Carper, D-DE Jan. 3, 2001
17 Debbie Stabenow, D-MI Jan. 3, 2001
18 Maria Cantwell, D-WA Jan. 3, 2001
19 John Cornyn, R-TX Dec. 2, 2002
20 Lisa Murkowski, R-AK Dec. 20, 2002
21 Lindsey Graham, R-SC Jan. 3, 2003
22 Lamar Alexander, R-TN Jan. 3, 2003
23 Richard M. Burr, R-NC Jan. 3, 2005
24 John Thune, R-SD Jan. 3, 2005
25 Johnny Isakson, R-GA Jan. 3, 2005
26 Robert Menendez, D-NJ Jan. 17, 2006
27 Benjamin L. Cardin, D-MD Jan. 3, 2007
28 Bernie Sanders, I-VT Jan. 3, 2007
29 Sherrod Brown, D-OH Jan. 3, 2007
30 Bob Casey, D-PA Jan. 3, 2007
31 Amy Klobuchar, D-MN Jan. 3, 2007
32 Sheldon Whitehouse, D-RI Jan. 3, 2007
33 Jon Tester, D-MT Jan. 3, 2007
34 John A. Barrasso, R-WY Jun. 22, 2007
35 Roger Wicker, R-MS Dec. 31, 2007
36 Tom Udall, D-NM Jan. 3, 2009
37 Jeanne Shaheen, D-NH Jan. 3, 2009
38 Mark Warner, D-VA Jan. 3, 2009
39 Jim Risch, R-ID Jan. 3, 2009
40 Jeff Merkley, D-OR Jan. 3, 2009
41 Michael Bennet, D-CO Jan. 21, 2009
42 Kirsten Gillibrand, D-NY Jan. 26, 2009*
43 Joe Manchin, D-WV Nov. 15, 2010
44 Chris Coons, D-DE Nov. 15, 2010
45 Roy Blunt, R-MO Jan. 3, 2011
46 Jerry Moran, R-KS Jan. 3, 2011
47 Rob Portman, R-OH Jan. 3, 2011
48 John Boozman, R-AR Jan. 3, 2011
49 Pat Toomey, R-PA Jan. 3, 2011
50 John Hoeven, R-ND Jan. 3, 2011
51 Marco Rubio, R-FL Jan. 3, 2011
52 Ron Johnson, R-WI Jan. 3, 2011
53 Rand Paul, R-KY Jan. 3, 2011
54 Richard Blumenthal, D-CT Jan. 3, 2011
55 Mike Lee, R-UT Jan. 3, 2011
56 Brian Schatz, D-HI Dec. 26, 2012
57 Tim Scott, R-SC Jan. 2, 2013**
58 Tammy Baldwin, D-WI Jan. 3, 2013
59 Chris Murphy, D-CT Jan. 3, 2013
60 Mazie Hirono, D-HI Jan. 3, 2013
61 Martin Heinrich, D-NM Jan. 3, 2013
62 Angus King, I-ME Jan. 3, 2013
63 Tim Kaine, D-VA Jan. 3, 2013
64 Ted Cruz, R-TX Jan. 3, 2013
65 Elizabeth Warren, D-MA Jan. 3, 2013
66 Deb Fischer, R-NE Jan. 3, 2013
67 Edward Markey, D-MA Jul. 16, 2013
68 Cory Booker, D-NJ Oct. 31, 2013
69 Shelley Moore Capito, R-WV Jan. 3, 2015
70 Gary Peters, D-MI Jan. 3, 2015
71 Bill Cassidy, R-LA Jan. 3, 2015
72 Cory Gardner, R-CO Jan. 3, 2015
73 James Lankford, R-OK Jan. 3, 2015
74 Tom Cotton, R-AR Jan. 3, 2015
75 Steve Daines, R-MT Jan. 3, 2015
76 Mike Rounds, R-SD Jan. 3, 2015
77 David Perdue, R-GA Jan. 3, 2015
78 Thom Tillis, R-NC Jan. 3, 2015
79 Joni Ernst, R-IA Jan. 3, 2015
80 Ben Sasse, R-NE Jan. 3, 2015
81 Dan Sullivan, R-AK Jan. 3, 2015
82 Chris Van Hollen, D-MD Jan. 3, 2017
83 Todd Young, R-IN Jan. 3, 2017
84 Tammy Duckworth, D-IL Jan. 3, 2017
85 Maggie Hassan, D-NH Jan. 3, 2017
86 Kamala Harris, D-CA Jan. 3, 2017
87 John Kennedy, R-LA Jan. 3, 2017
88 Catherine Cortez Masto, D-NV Jan. 3, 2017
89 Tina Smith, D-MN Jan. 3, 2018
90 Doug Jones, D-AL Jan. 3, 2018
91 Cindy Hyde-Smith, R-MS Apr. 2, 2018
92 Marsha Blackburn, R-TN Jan. 3, 2019
93 Kyrsten Sinema, D-AZ Jan. 3, 2019
94 Kevin Cramer, R-ND Jan. 3, 2019
95 Martha McSally, R-AZ Jan. 3, 2019
96 Jacky Rosen, D-NV Jan. 3, 2019
97 Mitt Romney, R-UT Jan. 3, 2019
98 Mike Braun, R-IN Jan. 3, 2019
99 Josh Hawley, R-MO Jan. 3, 2019
100 Rick Scott, R-FL Jan. 8, 2019

Kirsten Gillibrand was appointed on January 23, 2009. She resigned her House seat on January 26, and was sworn into office on January 27, 2009.

** Tim Scott was appointed on January 2, 2013, and resigned his House seat that same day. He was sworn into office on January 3, 2013.