# Forrest Mandeville

Forrest Mandeville is a Republican member of the Montana Senate for district 28.

- Party: Republican
- Seat: Montana Senate, district 28
- Serving since: 2023-01-02
- Current term: MT 2025–26 session
- Open States ID: ocd-person/40c484e9-cba9-4fd5-8f99-7bcaf25fc4ac

Source: https://americaspoliticalpulse.com/p/40c484e9-cba9-4fd5-8f99-7bcaf25fc4ac (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

Mandeville reported $11.6K in the 2026 cycle, in the bottom quarter of State Senate Republicans (median $46.2K).

## What Mandeville says (MT 2025–26 session)

82 classified statements: 82 posts on X. Each rate is the share of statements with the label, against the State Senate Republicans average; rank 1 is the highest rate.

| Label | Mandeville | State Senate Republicans average | Rank |
|---|---|---|---|
| Personal attacks | 0.0% | 2.3% | 272 of 354 |
| Policy criticism | 3.7% | 9.5% | 224 of 354 |
| Policy discussion | 15.8% | 37.3% | 306 of 354 |
| Bipartisanship | 1.2% | 2.3% | 198 of 354 |
| Credit claiming | 6.1% | 15.4% | 258 of 354 |
| Extreme labels | 0.0% | 1.3% | 261 of 354 |

Most discussed policy areas: Commerce 15% (State Senate Republicans 4.5%); Finance and Financial Sector 15% (State Senate Republicans 1.4%); Government Operations and Politics 15% (State Senate Republicans 17%); Housing and Community Development 15% (State Senate Republicans 3.1%); Taxation 15% (State Senate Republicans 7.1%).

## Ideology (CSIP)

CSIP score +0.47 (standard error 0.02), from 53 donors and 600 roll calls. Negative is left of 0, positive right of it, on one scale for every official. 66% of State Senate Republicans score lower.

## Votes (MT 2025–26 session)

2,812 roll calls. Attendance 99.5% (Montana Senate 98.9%). Party unity 92.0% (85%). 348 votes against the party majority.

## Legislation (MT 2025–26 session)

Sponsored 2 bills: 2 reached committee, 2 passed one chamber, 0 passed both, 0 became law. Cosponsored 0.

Recent sponsored bills:

- SR 91: Confirm governor's appointees for the board of housing (passed one chamber, 2025-04-16) https://openstates.org/mt/bills/2025/SR91/
- SR 48: Confirm governor's appointee for board of real estate appraisers (passed one chamber, 2025-04-15) https://openstates.org/mt/bills/2025/SR48/
- SJ 42: Interim study of noxious weed control (passed both chambers, 2025-05-06) https://openstates.org/mt/bills/2025/SJ42/
- SJ 47: Study resolution on the creation or alteration of local government entities (in committee, 2025-05-23) https://openstates.org/mt/bills/2025/SJ47/
- SB 329: Require employers to use e-verify for employment eligibility (in committee, 2025-05-23) https://openstates.org/mt/bills/2025/SB329/
- SB 142: Revise laws related to election administrator compensation (in committee, 2025-05-23) https://openstates.org/mt/bills/2025/SB142/
- SB 275: Allow revocation of agricultural covenant on lands annexed into municipality (became law, 2025-04-18) https://openstates.org/mt/bills/2025/SB275/
- SB 551: Revise fantasy sports laws (in committee, 2025-05-23) https://openstates.org/mt/bills/2025/SB551/
- SB 532: Revise county zoning to allow accessory dwelling units (became law, 2025-05-16) https://openstates.org/mt/bills/2025/SB532/
- SB 262: Exempt subdivision, water/sewer plans from environmental review (became law, 2025-05-08) https://openstates.org/mt/bills/2025/SB262/

## Campaign money (2026 cycle)

Itemized receipts $11.6K (State Senate Republicans median $46.2K). 99% of itemized individual money came from in state. Aggregates only; no individual donors.

## Recent statements

Newest first. Posts on X are listed by date and link only.

- 2026-09-16 · Post on X · https://x.com/fjmandeville/status/2100236440567427539
- 2026-09-07 · Post on X · https://x.com/fjmandeville/status/2096753686068568301
- 2026-09-05 · Post on X · https://x.com/fjmandeville/status/2096040229346136366
- 2026-09-05 · Post on X · https://x.com/fjmandeville/status/2096383860003295288
- 2026-09-03 · Post on X · labels: policy discussion · https://x.com/fjmandeville/status/2095616918497738832
- 2026-08-31 · Post on X · https://x.com/fjmandeville/status/2094412466029838666
- 2026-08-23 · Post on X · https://x.com/fjmandeville/status/2091324195317887082
- 2026-08-12 · Post on X · https://x.com/fjmandeville/status/2087669038076080504
- 2026-08-11 · Post on X · https://x.com/fjmandeville/status/2087240248279679088
- 2026-08-11 · Post on X · https://x.com/fjmandeville/status/2087261799645352097

## Links

- Official site: https://leg.mt.gov/legislator-information/roster/individual/7635
- X: https://x.com/fjmandeville
- Facebook: https://www.facebook.com/forrest.mandeville
- Facebook: https://www.facebook.com/MandevilleForMontana/
- LinkedIn: https://www.linkedin.com/in/forrest-mandeville-1748793/

Full profile, with every chart and the methods: https://americaspoliticalpulse.com/p/40c484e9-cba9-4fd5-8f99-7bcaf25fc4ac