# Mark Thane

Mark Thane is a Democratic member of the Montana House for district 89.

- Party: Democrat
- Seat: Montana House, district 89
- Serving since: 2021-01-04
- Current term: MT 2025–26 session
- Open States ID: ocd-person/64bf2cec-e248-4708-9462-1c3a971ad653

Source: https://americaspoliticalpulse.com/p/64bf2cec-e248-4708-9462-1c3a971ad653 (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

Thane has served since 2021.

## Ideology (CSIP)

CSIP score −0.50 (standard error 0.02), from 243 donors and 600 roll calls. Negative is left of 0, positive right of it, on one scale for every official. 69% of State House Democrats score lower.

## Votes (MT 2025–26 session)

2,755 roll calls. Attendance 99.9% (Montana House 99.2%). Party unity 95.4% (89%). 80 votes against the party majority.

## Campaign money (2026 cycle)

Itemized receipts $16.0K (State House Democrats median $40.4K). 90% of itemized individual money came from in state. Aggregates only; no individual donors.

## Links

- Official site: https://leg.mt.gov/legislator-information/roster/individual/6880
- Campaign site: https://www.thaneformontana.com
- X: https://x.com/markthane
- Facebook: https://www.facebook.com/markthanehd99
- LinkedIn: https://www.linkedin.com/in/mark-thane-0295aa37/

Full profile, with every chart and the methods: https://americaspoliticalpulse.com/p/64bf2cec-e248-4708-9462-1c3a971ad653