Senate Seniority
Senate Seniority
Senate Seniority List: 118th Congress
Source: https://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 | Seniority Date |
|---|---|---|
| 1 | Charles E. Grassley, R-IA | Jan. 3, 1981 |
| 2 | Mitch McConnell, R-KY | Jan. 3, 1985 |
| 3 | Patty Murray, D-WA | Jan. 3, 1993 |
| 4 | Ron Wyden, D-OR | Feb. 6, 1996 |
| 5 | Richard J. Durbin, D-IL | Jan. 3, 1997 |
| 6 | Jack Reed, D-RI | Jan. 3, 1997 |
| 7 | Susan Collins, R-ME | Jan. 3, 1997 |
| 8 | Charles E. Schumer, D-NY | Jan. 3, 1999 |
| 9 | Michael D. Crapo, R-ID | Jan. 3, 1999 |
| 10 | Thomas R. Carper, D-DE | Jan. 3, 2001 |
| 11 | Debbie Stabenow, D-MI | Jan. 3, 2001 |
| 12 | Maria Cantwell, D-WA | Jan. 3, 2001 |
| 13 | John Cornyn, R-TX | Dec. 2, 2002 |
| 14 | Lisa Murkowski, R-AK | Dec. 20, 2002 |
| 15 | Lindsey Graham, R-SC | Jan. 3, 2003 |
| 16 | John Thune, R-SD | Jan. 3, 2005 |
| 17 | Benjamin L. Cardin, D-MD | Jan. 3, 2007 |
| 18 | Bernie Sanders, I-VT | Jan. 3, 2007 |
| 19 | Sherrod Brown, D-OH | Jan. 3, 2007 |
| 20 | Bob Casey, D-PA | Jan. 3, 2007 |
| 21 | Amy Klobuchar, D-MN | Jan. 3, 2007 |
| 22 | Sheldon Whitehouse, D-RI | Jan. 3, 2007 |
| 23 | Jon Tester, D-MT | Jan. 3, 2007 |
| 24 | John A. Barrasso, R-WY | Jun. 22, 2007 |
| 25 | Roger Wicker, R-MS | Dec. 31, 2007 |
| 26 | Jeanne Shaheen, D-NH | Jan. 3, 2009 |
| 27 | Mark Warner, D-VA | Jan. 3, 2009 |
| 28 | Jim Risch, R-ID | Jan. 3, 2009 |
| 29 | Jeff Merkley, D-OR | Jan. 3, 2009 |
| 30 | Michael Bennet, D-CO | Jan. 21, 2009 |
| 31 | Kirsten Gillibrand, D-NY | Jan. 26, 2009 |
| 32 | Joe Manchin, D-WV | Nov. 15, 2010 |
| 33 | Chris Coons, D-DE | Nov. 15, 2010 |
| 34 | Jerry Moran, R-KS | Jan. 3, 2011 |
| 35 | John Boozman, R-AR | Jan. 3, 2011 |
| 36 | John Hoeven, R-ND | Jan. 3, 2011 |
| 37 | Marco Rubio, R-FL | Jan. 3, 2011 |
| 38 | Ron Johnson, R-WI | Jan. 3, 2011 |
| 39 | Rand Paul, R-KY | Jan. 3, 2011 |
| 40 | Richard Blumenthal, D-CT | Jan. 3, 2011 |
| 41 | Mike Lee, R-UT | Jan. 3, 2011 |
| 42 | Brian Schatz, D-HI | Dec. 26, 2012 |
| 43 | Tim Scott, R-SC | Jan. 2, 2013 |
| 44 | Tammy Baldwin, D-WI | Jan. 3, 2013 |
| 45 | Chris Murphy, D-CT | Jan. 3, 2013 |
| 46 | Mazie Hirono, D-HI | Jan. 3, 2013 |
| 47 | Martin Heinrich, D-NM | Jan. 3, 2013 |
| 48 | Angus King, I-ME | Jan. 3, 2013 |
| 49 | Tim Kaine, D-VA | Jan. 3, 2013 |
| 50 | Ted Cruz, R-TX | Jan. 3, 2013 |
| 51 | Elizabeth Warren, D-MA | Jan. 3, 2013 |
| 52 | Deb Fischer, R-NE | Jan. 3, 2013 |
| 53 | Edward Markey, D-MA | Jul. 16, 2013 |
| 54 | Cory Booker, D-NJ | Oct. 31, 2013 |
| 55 | Shelley Moore Capito, R-WV | Jan. 3, 2015 |
| 56 | Gary Peters, D-MI | Jan. 3, 2015 |
| 57 | Bill Cassidy, R-LA | Jan. 3, 2015 |
| 58 | James Lankford, R-OK | Jan. 3, 2015 |
| 59 | Tom Cotton, R-AR | Jan. 3, 2015 |
| 60 | Steve Daines, R-MT | Jan. 3, 2015 |
| 61 | Mike Rounds, R-SD | Jan. 3, 2015 |
| 62 | Thom Tillis, R-NC | Jan. 3, 2015 |
| 63 | Joni Ernst, R-IA | Jan. 3, 2015 |
| 64 | Dan Sullivan, R-AK | Jan. 3, 2015 |
| 65 | Chris Van Hollen, D-MD | Jan. 3, 2017 |
| 66 | Todd Young, R-IN | Jan. 3, 2017 |
| 67 | Tammy Duckworth, D-IL | Jan. 3, 2017 |
| 68 | Maggie Hassan, D-NH | Jan. 3, 2017 |
| 69 | John Kennedy, R-LA | Jan. 3, 2017 |
| 70 | Catherine Cortez Masto, D-NV | Jan. 3, 2017 |
| 71 | Tina Smith, D-MN | Jan. 3, 2018 |
| 72 | Cindy Hyde-Smith, R-MS | Apr. 2, 2018 |
| 73 | Marsha Blackburn, R-TN | Jan. 3, 2019 |
| 74 | Kyrsten Sinema, I-AZ | Jan. 3, 2019 |
| 75 | Kevin Cramer, R-ND | Jan. 3, 2019 |
| 76 | Jacky Rosen, D-NV | Jan. 3, 2019 |
| 77 | Mitt Romney, R-UT | Jan. 3, 2019 |
| 78 | Mike Braun, R-IN | Jan. 3, 2019 |
| 79 | Josh Hawley, R-MO | Jan. 3, 2019 |
| 80 | Rick Scott, R-FL | Jan. 8, 2019 |
| 81 | Mark Kelly, D-AZ | Dec. 2, 2020 |
| 82 | Ben Ray Luján, (D-NM) | Jan. 3, 2021 |
| 83 | Cynthia M. Lummis, (R-WY) | Jan. 3, 2021 |
| 84 | Roger W. Marshall, (R-KS) | Jan. 3, 2021 |
| 85 | John W. Hickenlooper, Jr., (D-CO) | Jan. 3, 2021 |
| 86 | William F.Hagerty, IV, (R-TN) | Jan. 3, 2021 |
| 87 | Thomas H. Tuberville, (R-AL) | Jan. 3, 2021 |
| 88 | Alex Padilla, (D-CA) | Jan. 18, 2021 |
| 89 | Jon Ossoff, (D-GA) | Jan. 20, 2021 |
| 90 | Raphael G. Warnock, (D-GA) | Jan. 20, 2021 |
| 91 | Peter Welch, (D-VT) | Jan. 3, 2023 |
| 92 | Markwayne Mullin, (R-OK) | Jan. 3, 2023 |
| 93 | Ted Budd, (R-NC) | Jan. 3, 2023 |
| 94 | John Fetterman, (D-PA) | Jan. 3, 2023 |
| 95 | JD Vance, (R-OH) | Jan. 3, 2023 |
| 96 | Eric Schmitt, (R-MO) | Jan. 3, 2023 |
| 97 | Katie Boyd Britt, (R-AL) | Jan. 3, 2023 |
| 98 | Pete Ricketts (R-NE) | Jan. 12, 2023 |
| 99 | Laphonza Butler (D-CA) | Oct. 1, 2023 |
| 100 | George Helmy (D-NJ) | Aug. 23, 2024 |
The seniority date for an appointed senator is usually the date of the appointment, although the actual term does not begin until they take the oath of office.
Cornyn was elected to the full term commencing Jan. 3, 2003, and was subsequently appointed to the vacancy in the term ending Jan. 3, 2003 after his predecessor, Phil Gramm, resigned. Owing to conference rules that sought to end the practice of senators resigning their terms early to give their successors seniority, Cornyn did not gain seniority.
Murkowski was appointed on December 20, 2002, and was sworn into office on January 7, 2003.
Barrasso was appointed on June 22, 2008, and was sworn into office on June 25, 2008.
Gillibrand was appointed on January 23, 2009. She resigned her House seat on January 26, and was sworn into office on January 27, 2009.
Brian Schatz was appointed on December 26, 2012, and was sworn into office on December 27, 2012. 6
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.
Smith was appointed on January 2, 2018, and resigned her position as lieutenant governor of Minnesota effective 11:59 p.m. January 2, 2018. She took the oath of office on January 3, 2018.
Hyde-Smith was appointed on April 2, 2018, and was sworn into office on April 9, 2018.
Scott was elected to the term commencing Jan. 3, 2019. He served as governor during interim.
Padilla was appointed on January 18, 2021, and was sworn into office on January 20, 2021.
Ricketts was appointed on January 12, 2023, and took the oath of office on January 23, 2023.
Butler was appointed on October 1, 2023, and took the oath of office on October 3, 2023.
Helmy was appointed on August 23, 2024, and took the oath of office on September 9, 2024.
