Former senator · Montana

Jon Tester

Jon Tester served in Congress from 2007 to 2025, last as a Democratic senator from Montana. In the 118th Congress, 691 roll calls were held while they served; they missed 24, and cast 486 of 514 party-unity votes with the majority of their caucus.

Party
Democrat
Chamber
Senate
Former
In Congress since
Jan 4, 2007
Last term ended
Jan 3, 2025
Open in the Congress explorerOfficial record
Photo: Government Publishing Office (public domain)

Record by Congress

Counts with their denominators for each Congress and chamber served. Ranks are among members who served most of that Congress (100 or more roll calls): rank 1 did it most often. A description, not a grade.

CongressRoll callsMissedVotes with partySponsoredCosponsored across the aisle
118th CongressSenate6913.5%24 of 691 · rank 51 of 10195%486 of 514 · rank 81 of 101764 became law41%99 of 240
117th CongressSenate9490.2%2 of 949 · rank 98 of 10097%745 of 766 · rank 54 of 100766 became law38%116 of 302

Ideology (DW-NOMINATE)

Voteview's DW-NOMINATE first dimension estimates where members sit from all their roll calls: liberal (−1) to conservative (+1). It describes voting patterns, not views. Shown for the 118th Congress (Senate), with each party's median and the chamber's range.

Liberal −1−0.21+1 Conservative

Source: Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/

Votes against their party

The latest party-unity votes on bills and amendments where the member voted yea or nay against most of their caucus.

  1. H.R. 9468: Veterans Benefits Continuity and Accountability Supplemental Appropriations Act, 2024Yea
    Sep 19, 2024· Senate· Amendments· On the Amendment· Amendment Rejected 47–47· Against party
  2. H.J.Res. 109: Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Securities and Exchange Commission relating to "Staff Accounting Bulletin No. 121".Yea
    May 16, 2024· Senate· Passage· On the Joint Resolution· Joint Resolution Passed 60–38· Against party
  3. S. 4072: A bill to prohibit the use of funds to implement, administer, or enforce certain rules of the Environmental Protection Agency.Yea
    Apr 18, 2024· Senate· Passage· On Passage of the Bill· Bill Defeated 52–46· Against party
  4. S.J.Res. 61: A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Federal Highway Administration relating to "National Performance Management Measures; Assessing Performance of the National Highway System, Greenhouse Gas Emissions Measure".Yea
    Apr 10, 2024· Senate· Passage· On the Joint Resolution· Joint Resolution Passed 53–47· Against party
  5. S.J.Res. 38: A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Federal Highway Administration relating to "Waiver of Buy America Requirements for Electric Vehicle Chargers".Yea
    Feb 29, 2024· Senate· Passage· On Overriding the Veto· Veto Sustained 50–47· Against party
  6. S.J.Res. 32: A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Bureau of Consumer Financial Protection relating to "Small Business Lending Under the Equal Credit Opportunity Act (Regulation B)".Yea
    Jan 10, 2024· Senate· Passage· On Overriding the Veto· Veto Sustained 54–45· Against party
  7. S.J.Res. 38: A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Federal Highway Administration relating to "Waiver of Buy America Requirements for Electric Vehicle Chargers".Yea
    Nov 8, 2023· Senate· Passage· On the Joint Resolution· Joint Resolution Passed 50–48· Against party
  8. H.R. 4366: Consolidated Appropriations Act, 2024Yea
    Nov 1, 2023· Senate· Amendments· On the Amendment· Amendment Rejected 52–45· Against party

Recent votes

The latest roll calls on bills and amendments, with the member's recorded position.

  1. H.R. 10545: American Relief Act, 2025Yea
    Dec 21, 2024· Senate· Passage· On Passage of the Bill· Bill Passed 85–11
  2. H.R. 82: Social Security Fairness Act of 2023Yea
    Dec 21, 2024· Senate· Passage· On Passage of the Bill· Bill Passed 76–20
  3. H.R. 82: Social Security Fairness Act of 2023Nay
    Dec 20, 2024· Senate· Amendments· On the Amendment· Amendment Rejected 34–62
  4. H.R. 82: Social Security Fairness Act of 2023Nay
    Dec 20, 2024· Senate· Amendments· On the Amendment· Amendment Rejected 32–64
  5. H.R. 82: Social Security Fairness Act of 2023Nay
    Dec 20, 2024· Senate· Amendments· On the Amendment· Amendment Rejected 28–67
  6. H.R. 82: Social Security Fairness Act of 2023Nay
    Dec 20, 2024· Senate· Amendments· On the Amendment· Amendment Rejected 3–93
  7. H.R. 9747: Continuing Appropriations and Extensions Act, 2025Yea
    Sep 25, 2024· Senate· Passage· On Passage of the Bill· Bill Passed 78–18
  8. H.R. 9468: Veterans Benefits Continuity and Accountability Supplemental Appropriations Act, 2024Yea
    Sep 19, 2024· Senate· Amendments· On the Amendment· Amendment Rejected 47–47· Against party
  9. S.J.Res. 58: A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Department of Energy relating to "Energy Conservation Program: Energy Conservation Standards for Consumer Furnaces".Not voting
    May 21, 2024· Senate· Passage· On the Joint Resolution· Joint Resolution Passed 50–45
  10. H.J.Res. 109: Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Securities and Exchange Commission relating to "Staff Accounting Bulletin No. 121".Yea
    May 16, 2024· Senate· Passage· On the Joint Resolution· Joint Resolution Passed 60–38· Against party
  11. S.J.Res. 57: A joint resolution providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule submitted by the Department of the Treasury relating to "Coronavirus State and Local Fiscal Recovery Funds".Nay
    May 15, 2024· Senate· Passage· On the Joint Resolution· Joint Resolution Defeated 46–49
  12. H.R. 3935: FAA Reauthorization Act of 2024Yea
    May 9, 2024· Senate· Passage· On Passage of the Bill· Bill Passed 88–4

Sponsored bills

Bills and resolutions the member introduced as sponsor in the loaded Congresses. Volume is not quality: most measures never leave committee.

152 sponsored · 10 became law

How far they got

  1. Introduced10468%
  2. Reported by committee117.2%
  3. Passed one chamber2718%
  4. Became law106.6%

Policy areas

  1. Armed Forces and National Security70
  2. Native Americans12
  3. Health10
  4. Agriculture and Food8
  5. Congress7
  6. Education7
  7. Government Operations and Politics6
  8. Transportation and Public Works5

Latest activity

  1. S. 2513 Veterans Benefits Improvement Act of 2024
    Became law· Armed Forces and National Security· Dec 23, 2024
  2. S. 4442 Crow Tribe Water Rights Settlement Amendments Act of 2024
    Reported by committee· Native Americans· Dec 4, 2024
  3. S. 3346 Montana Headwaters Legacy Act
    Reported by committee· Public Lands and Natural Resources· Nov 21, 2024
  4. S.Res. 879 A resolution permitting the collection of clothing, toys, food, and housewares during the holiday season for charitable purposes in Senate buildings.
    Passed one chamber· Congress· Sep 25, 2024
  5. S. 815 Hello Girls Congressional Gold Medal Act of 2024
    Passed one chamber· Armed Forces and National Security· Sep 25, 2024
  6. S. 5210 BRAVE Act of 2024
    Introduced· Armed Forces and National Security· Sep 25, 2024
  7. S. 5052 A bill to prohibit the importation of critical minerals from the Russian Federation.
    Introduced· Foreign Trade and International Finance· Sep 12, 2024
  8. S.Res. 798 A resolution commemorating the 75th Anniversary of the Mann Gulch fire by designating August 5, 2024, as "Mann Gulch Memorial Tribute Day".
    Passed one chamber· Government Operations and Politics· Aug 1, 2024

Committees

Seats as published by the congress-legislators project. Past seats are those no longer listed since Analisa began recording them.

No committee seats are listed.

Campaign money

What the member's campaigns reported receiving, per FEC two-year cycle, and the federal contracts of the organizations that sponsor the giving PACs (each sponsor matched to a contract recipient by AI, with its probability). Comparisons of public records: neither explains the other.

2026 cycle

Raised
$269.8K
through Jun 30, 2026
Cash on hand
$702.3K
From committees
-$13K
0 committees
From contractor PACs
-$5,500
0 PACs · — of committee money
IndividualsPACsPartySelf

By cycle

CycleRaised (FEC summary)From committeesFrom contractor PACs
2026$269.8K-$13K-$5,5000 PACs · — of committee money
2024$93.6M$3.2M$579.6K126 PACs · 18% of committee money
2022$2.8M$837.8K$241.8K68 PACs · 29% of committee money

Raised is the FEC's cumulative summary of the candidacy; committee money counts each contribution reported, so the two cover slightly different dates.

Terms

Every term in the House or Senate, as published by the congress-legislators project.

  1. Senate · MontanaJan 3, 2019 – Jan 3, 2025
  2. Senate · MontanaJan 3, 2013 – Jan 3, 2019
  3. Senate · MontanaJan 4, 2007 – Jan 3, 2013

Identifiers

The same member in other public records.

Sources and method

Every figure on this page traces to these records.

  • Members of Congress, their terms, committees and identifiers (The @unitedstates project (from the Biographical Directory of the U.S. Congress, the House and the Senate))unitedstates/congress-legislators: legislators, committees and current committee membership · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: CC0 1.0 (public domain dedication)
  • House roll-call votes (Office of the Clerk, U.S. House of Representatives)Office of the Clerk, U.S. House of Representatives, roll-call vote records · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Senate roll-call votes and DW-NOMINATE scores (Voteview (UCLA Department of Political Science))Lewis, Jeffrey B., Keith Poole, Howard Rosenthal, Adam Boche, Aaron Rudkin, and Luke Sonnet (2026). Voteview: Congressional Roll-Call Votes Database. https://voteview.com/ · data current to Oct 3, 2026 · loaded Oct 3, 2026 · license: Free to use with the required citation
  • Bill status: bills and resolutions, sponsors, actions, subjects and CRS summaries (U.S. Government Publishing Office (GovInfo), from Congress.gov (Library of Congress))GovInfo Bill Status bulk data (Congress.gov; summaries by the Congressional Research Service) · data current to Oct 8, 2026 · loaded Oct 8, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Congressional district boundaries and relationship files (U.S. Census Bureau)U.S. Census Bureau, Cartographic Boundary Files (congressional districts) and 2020 relationship files · release cd116+cd118+cd119 · loaded Oct 3, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Committees, candidates and committee contributions to candidates (Federal Election Commission)FEC bulk data: committee master, candidate master (candidates' names, no addresses), linkages, PAC summaries, all-candidates summaries and contributions from committees (no individual contributors) · data current to Oct 8, 2026 · loaded Oct 8, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Federal contract transactions (Federal Procurement Data System) (U.S. Department of the Treasury, USAspending.gov)USAspending.gov, prime award contract transactions (FPDS) · data current to Oct 7, 2026 · loaded Oct 7, 2026 · license: Public domain (U.S. Government work, 17 U.S.C. § 105)
  • Positions are shown only where a roll call recorded them; voice votes and unanimous consent record none.
  • Activity counts describe volume and attendance; they are not a measure of quality.
  • Money and votes are shown side by side; neither explains the other.