# Zack Wirth

Zack Wirth is a Republican member of the Montana House for district 17.

- Party: Republican
- Seat: Montana House, district 17
- Serving since: 2023-01-03
- Current term: MT 2025–26 session
- Open States ID: ocd-person/01b5e40e-16c0-48df-8e7b-28877a05fe28

Source: https://americaspoliticalpulse.com/p/01b5e40e-16c0-48df-8e7b-28877a05fe28 (America’s Political Pulse, Polarization Research Lab), data through 2026-10-27. Data under CC BY 4.0. Cite as: Westwood, Sean J., and Yphtach Lelkes. 2024. America's Political Pulse [data set].

## Headline

Wirth has served since 2023.

## Ideology (CSIP)

CSIP score +0.38 (standard error 0.02), from 156 donors and 300 roll calls. Negative is left of 0, positive right of it, on one scale for every official. 56% of State House Republicans score lower.

## Votes (MT 2025–26 session)

2,755 roll calls. Attendance 99.7% (Montana House 99.2%). Party unity 94.1% (89%). 188 votes against the party majority.

## Legislation (MT 2025–26 session)

Sponsored 1 bills: 1 reached committee, 1 passed one chamber, 1 passed both, 0 became law. Cosponsored 0.

Recent sponsored bills:

- HJ 44: Interim study of endocrine-disrupting chemicals and water quality (passed both chambers, 2025-05-06) https://openstates.org/mt/bills/2025/HJ44/
- HJ 3: Joint resolution on Bowman's Corner (in committee, 2025-05-20) https://openstates.org/mt/bills/2025/HJ3/
- HJ 36: Resolution in support of instruction in reading and writing in cursive (in committee, 2025-05-22) https://openstates.org/mt/bills/2025/HJ36/
- HB 597: Prohibit inactive electors from signing petitions (in committee, 2025-05-20) https://openstates.org/mt/bills/2025/HB597/
- HB 768: Revise civil liability laws relating to equine activities and waivers (became law, 2025-05-19) https://openstates.org/mt/bills/2025/HB768/
- HB 445: Revise laws to promote the teaching of cursive writing in schools (in committee, 2025-05-20) https://openstates.org/mt/bills/2025/HB445/
- HB 172: Revise laws for prioritization of highway projects (in committee, 2025-05-20) https://openstates.org/mt/bills/2025/HB172/
- HB 598: Require ballot issue signers to be active registered voters (in committee, 2025-05-20) https://openstates.org/mt/bills/2025/HB598/
- HB 97: Allow for platooning vehicles (became law, 2025-04-03) https://openstates.org/mt/bills/2025/HB97/
- HB 720: Revise laws to define life (in committee, 2023-05-03) https://openstates.org/mt/bills/2023/HB720/

## Campaign money (2026 cycle)

Itemized receipts $40.5K (State House Republicans median $33.7K). 94% of itemized individual money came from in state. Aggregates only; no individual donors.

## Links

- Campaign site: https://archive.legmt.gov/legislator-information/roster/individual/7654
- Facebook: https://www.facebook.com/people/Zack-Wirth/pfbid0jWmx8KMAduAasgiMt3EQJhrpANJM4jQogby1Cv1EYnYVYPcEmFeby1aT1io9VKgbl/

Full profile, with every chart and the methods: https://americaspoliticalpulse.com/p/01b5e40e-16c0-48df-8e7b-28877a05fe28