RepublicanIn office since Nov 2020

Tom McGillvray

Montana State Senator, District 26 since 2020. Next on the ballot in 2028.

Montana State Senator, District 26

In office
6 yrs
Since 2020
Bills became law
4
14 sponsored, 2025–2026 session
Votes missed
0.2%
Chamber median 0.5%
With party
93%
On votes splitting the parties
Last margin
+27.8
Won 2024
Next election
2028
Nov 7, 2028

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 9:43 AM ET

Committees

As of 2026-10.

  • Ethics · vice chair
  • Rules · chair
  • Rules · chair
  • Finance and Claims
  • Fish and Game
  • Fish and Wildlife
  • Legislative Audit
  • Public Health, Welfare and Safety
  • Public Safety Interim Budget

Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET

Legislation

2025–2026 session · 14 sponsored · 4 became law
BillIntroCmteSenateHouseLaw
SB 45 Create a judicial performance evaluation commission and system
Courts · Became law May 2025
SB 30 Revise laws related to Judiciary and rule of necessity
Courts · Became law May 2025
SB 456 Revise professions and occupations laws regarding dispensing of drugs
Alcohol · Became law Apr 2025
SB 132 Generally revise minor in possession laws
Alcohol · Became law Apr 2025
SB 52 Create Montana Court of Chancery
Courts · Failed in committee May 2025

Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET

Voting record

2025–2026 session · placement by roll-call votes

Where McGillvray sits in the Montana State Senate

McGillvray is closer to the center than 41% of the chamber's Republicans.

Dem. medianRep. medianMcGillvrayMore liberalMore conservative

Closest: Ken Bogner, John Esp, Forrest Mandeville

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:55 PM ET

With McGillvray’s party

  • Votes with the chamber's Republicans93%

Black tick: the average of Republicans in the Montana State Senate.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

Votes chosen for their effect, not their side: McGillvray’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.

DateBillMcGillvrayRep. majorityDem. majorityResult
Apr 23, 2025HB 860: Provide for veterinary training loan programYesYesYesPassed 41–9
Apr 23, 2025HB 129: Provide income tax benefit to support emergency response volunteersNoNoYesPassed 28–22
Apr 23, 2025HB 853: Revise fees for licensed establishmentsNoNoYesPassed 29–21

Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls

Career

Offices held, and every time McGillvray was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.

Source: 99chambers results archive (MEDSL, Klarner, state election offices)

Elections

Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.

YearRaceResultMargin
2024Montana State Senate, District 26WonR+27.8
2020Montana State Senate, District 23Won—
2018Montana State Senate, District 24LostD+8.0
2010Montana House of Representatives, District 50WonR+12.0
2008Montana House of Representatives, District 50WonR+13.2
2006Montana House of Representatives, District 50WonR+24.7
2004Montana House of Representatives, District 50WonR+12.8

Source: 99chambers results archive

Seats McGillvray has held

Source: 99chambers results archive

Who McGillvray has run against

  • Karen Lyncoln (D) · 2024 general, won
  • Mary McNally (D) · 2018 general, lost
  • Mary Hernandez (D) · 2010 general, won
  • Maria Hernandez (D) · 2008 general, won
  • Doug Braun (D) · 2006 general, won
  • Mathew N. Millenbach (D) · 2004 general, won

Source: 99chambers results archive

How we know McGillvray

One person, matched across every source we use.

Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET