Former Senator from Montana, 2007–2025
Jon Tester
Record from the 118th Congress · From public records: votes from Voteview, bills from congress.gov, money from FEC filings · votes updated Nov 2, 2026 · How we measure
Position · −0.21
- In office
- Senate 2007–2025
17 years in Congress
Left office. Tester left the Senate on Jan 3, 2025, when the term ended. Succeeded by Tim Sheehy (Republican) in January 2025.
Bottom line
- Broke with Democrats more often than all but 2 of the 53 Senate Democrats in the 118th Congress: sided with them on 95% of party-line votes (median 99%).
- Moved bills further than peers in the 118th Congress: effectiveness 2.66 against 1.14 expected; 4 of their bills became law (3 national policy · 1 technical).
- Broke with Democrats most on Economics and Public Finance in the 118th Congress: voted against them on 13% of party-line votes (7 of 53), against 2% for most Democrats.
Counts, not a score: statements as the Statements tab counts them, bills by introduction date, roll calls the member voted in, breaks on party-line votes.
StatementsBills
No counted statements yet; bills go to Armed Forces and National Security and Native Americans.
- 76 bills sponsored, most on Armed Forces and National Security.
- Statements: our record starts in January 2025.
Committee seats are shown for sitting members only.
Committee and party posts are shown for sitting members only.
- 17 years in Congress.
His cosponsorships on Republican bills
Closest within his party
Closest across the aisle
Closest across the aisle Pro The members of the other party who vote most like Tester.
Free account See ProAgreement on contested votes where both cast yea or nay, in that Congress · Voteview
38% of his cosponsorships went to Republican bills (peer median 17%); closest in his party: Helmy and Brown.
- Other-party share of cosponsors on his own bills: not yet tracked.
- Caucus memberships: not yet tracked.
His billsExpected for a peer
2.66expected 0.68 · average member 1.00
With his party on the other 2 areas with 10 or more party-line votes.
Major bills of the Congress · final passage
- H.R. 4366 Consolidated Appropriations Act, 2024 Nov 1, 2023 YEA D 51–0
- H.R. 2670 National Defense Authorization Act for Fiscal Year 2024 Dec 13, 2023 YEA D 44–7
- H.R. 3746 Fiscal Responsibility Act of 2023 Jun 1, 2023 YEA D 46–5
- H.R. 3935 FAA Reauthorization Act of 2024 May 9, 2024 YEA D 44–4
- H.R. 5860 Continuing Appropriations Act, 2024 and Other Extensions Act Sep 30, 2023 YEA D 49–0
- H.R. 6363 Further Continuing Appropriations and Other Extensions Act, 2024 Nov 15, 2023 YEA D 50–1
- H.R. 9747 Continuing Appropriations and Extensions Act, 2025 Sep 25, 2024 YEA D 50–0
- H.J.Res. 7 Relating to a national emergency declared by the President on March 13, 2020. Mar 29, 2023 YEA D 23–23
- H.J.Res. 26 Disapproving the action of the District of Columbia Council in approving the Revised Criminal Code Act of 2022. Mar 8, 2023 YEA D 33–14
- H.R. 7888 Reforming Intelligence and Securing America Act Apr 19, 2024 NAY D 30–18
Voted with his party on 8 of the 9 he voted on.
The same ten bills on every profile, chosen by a rule from the roll calls, statements and lobbying filings on file · Method · party column: Democrats yea–nay on that roll call.
Voted with Democrats on 95% of party-line votes, broke 27 times (peer median 3), most on Armed Forces & National Security.
- Position: −0.21, inside the Democratic middle 80%.
- Most breaks by area: Economics and Public Finance 7 of 53, Armed Forces & National Security 3 of 18, International Affairs 1 of 14.
Distance from party, not an ideology score · areas under 10 party-line votes not shown.
The money record for a former member is on the Money tab.
Positions are being checked before they go public; this question fills in when they are.