2026 state legislative forecast
Montana Senate forecast
Republicans win control of the Montana Senate in nearly every one of 2,000 simulations, against a Republican majority today. 25 of the 50 seats are on the 2026 ballot and 25 carry over until 2028; 0 races are within a 35 to 65 split.
Chance of control
<1%D>99%R
Democratic seats, 80% range
19 to 22Median 20 · 26 for a majority
Favored to flip
1to D0to R
After 2024: 16 D, 27 R
Environment
D +10.2Shift from the 2024 presidential vote
Montana Senate map
Safe DLean DToss upLean RSafe RNot up in 2026
District shapes are estimated from where each district's voters live in the precinct returns, not drawn from the official boundary files.
Pick a district
Hover the map for the odds in any district. Click one to pin it here and find it in the table below.
Every seat
Average 20 D to 30 RSafe DLean DToss upLean RSafe RNot up
Democratic seats across 2,000 simulations
Every Senate district
| District | Last winner | 2026 nominees | 2024 lean | Forecast | Dem win | Rating |
|---|---|---|---|---|---|---|
| 11 | Daniel Emrich 2022 | Valynda Holland vs Steven Galloway | R +20.6 | R +3.1 | 30% | Lean R |
| 12 | Wendy Mckamey 2022 | Mindy Leach vs George Nikolakakos | R +15.8 | R +3.7 | 29% | Lean R |
| 10 | Not on file | Margaret Mitchell vs Jessica Dyrdahl | R +5.8 | D +4.4 | 74% | Lean D |
| 42 | Mary Ann Dunwell 2022 | Mary Ann Dunwell vs Stephen Lapraim | R +13.5 | D +8.8 | 91% | Likely D |
| 23 | Not on file | Emma Kerr-Carpenter vs Joanna Oblander | D +1.1 | D +11.3 | 97% | Likely D |
How this is built
Each district starts from its 2024 presidential vote, read off the precincts that voted in it, and moves with the state's 2026 House forecast and the national generic ballot. Half of what the last legislative winner ran ahead of the district carries over, 2026 primary turnout moves districts where it is posted, and district and statewide legislative polls count by recency and sample. A seat with no candidate from one party is called for the other. 2,000 simulations share a national, a state and a district shock. The map's district shapes are estimated from where each district's voters are in the precinct returns. All chambers.