# Derek Harvey

Derek Harvey is a Democratic member of the Montana Senate for district 37.

- Party: Democrat
- Seat: Montana Senate, district 37
- Serving since: 2019-01-07
- Current term: MT 2025–26 session
- Open States ID: ocd-person/ec4cdcd7-d8b8-4c37-84ce-a99749b22ca3

Source: https://americaspoliticalpulse.com/p/ec4cdcd7-d8b8-4c37-84ce-a99749b22ca3 (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

Harvey sits at −0.41 on the CSIP scale, more conservative than 83% of State Senate Democrats.

## Ideology (CSIP)

CSIP score −0.41 (standard error 0.02), from 34 donors and 894 roll calls. Negative is left of 0, positive right of it, on one scale for every official. 83% of State Senate Democrats score lower.

## Votes (MT 2025–26 session)

2,812 roll calls. Attendance 99.4% (Montana Senate 98.9%). Party unity 89% (85%). 153 votes against the party majority.

## Campaign money (2024 cycle)

Itemized receipts $11.5K (State Senate Democrats median $16.2K). 90% of itemized individual money came from in state. Aggregates only; no individual donors.

## Links

- Official site: https://www.leg.mt.gov/legislator-information/roster/individual/6866
- X: https://x.com/Harvz96
- Facebook: https://www.facebook.com/derek.harvey.1042
- Facebook: https://www.facebook.com/Harvey4Senate
- LinkedIn: https://www.linkedin.com/in/derek-harvey-b945b280/

Full profile, with every chart and the methods: https://americaspoliticalpulse.com/p/ec4cdcd7-d8b8-4c37-84ce-a99749b22ca3