Zack Wirth
Montana State Representative, District 17 since 2024. Did not run for re-election in 2026; leaves office in January 2027.
- In office
- 1 yr
- Since 2024
- Bills became law
- 2
- 9 sponsored, 2025–2026 session
- Votes missed
- 0.3%
- Chamber median 0.2%
- With party
- 94%
- On votes splitting the parties
- Last margin
- +50.6
- Won 2024
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 9:43 AM ET
Committees
As of 2026-10.
- Transportation · vice chair
- Agriculture
- State Administration
- Transportation Interim
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
Liability · Became law May 2025
Education - K-12 · Failed in committee May 2025
Highways and Roads · Failed in committee May 2025
Ballot Issues · Failed in committee May 2025
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Voting record
Where Wirth sits in the Montana House of Representatives
Wirth is closer to the center than 36% of the chamber's Republicans.
Closest: Lee Deming, Morgan Thiel, Tracy Sharp
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:55 PM ET
With Wirth’s party
- Votes with the chamber's Republicans94%
Black tick: the average of Republicans in the Montana House of Representatives.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Wirth’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Wirth | Rep. majority | Dem. majority | Result |
|---|---|---|---|---|---|
| Apr 28, 2025 | SB 118: Generally revise student data laws to enhance privacy | Yes | Yes | No | Failed 33–67 |
| Apr 25, 2025 | SB 151: Direct the director of the public defender's office to create units for family defense and… | No | No | Yes | Failed 49–50 |
| Apr 25, 2025 | SB 321: Provide tax credits for children and child care | No | No | Yes | Failed 46–53 |
| Apr 24, 2025 | SB 322: Increase business equipment tax exemption | Yes | Yes | No | Failed 48–52 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Wirth 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.
| Year | Race | Result | Margin |
|---|---|---|---|
| 2024 | Montana House of Representatives, District 17 | Won | R+50.6 |
Source: 99chambers results archive
Seats Wirth has held
- Montana House of Representatives, District 17 · since 2024
Source: 99chambers results archive
Who Wirth has run against
- Leonard Bates (D) · 2024 general, won
Source: 99chambers results archive
How we know Wirth
One person, matched across every source we use.
- Open States ocd-person/01b5e40e-16c0-48df-8e7b-28877a05fe28
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET