2026 state legislative forecast
Arizona Senate forecast
Democrats win control of the Arizona Senate in 94% of 2,000 simulations, against a Republican majority today. All 30 seats are on the 2026 ballot; 2 races are within a 35 to 65 split.
Chance of control
94%D2%R
Democratic seats, 80% range
16 to 20Median 18 · 16 for a majority
Favored to flip
6to D0to R
After 2024: 13 D, 17 R
Environment
D +13.5Shift from the 2024 presidential vote
Arizona Senate map
Safe DLean DToss upLean RSafe R
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 18 D to 12 RSafe DLean DToss upLean RSafe R
Democratic seats across 2,000 simulations
Every Senate district
| District | Last winner | 2026 nominees | 2024 lean | Forecast | Dem win | Rating |
|---|---|---|---|---|---|---|
| 27 | Kevin Payne 2024 | Kyle Clayton vs Kevin Payne | R +11.4 | D +0.5 | 53% | Toss up |
| 16 | Thomas "Tj." Shope Jr 2024 | Elaine Aldrete vs T.J. Shope | R +9.5 | D +1.9 | 61% | Toss up |
| 29 | Janae Shamp 2024 | Eric Stafford vs Janae Shamp | R +18.5 | R +6.6 | 15% | Likely R |
| 14 | Warren Petersen 2024 | Stephanie Walsh vs Mylie Biggs | R +18.5 | R +7.8 | 12% | Likely R |
| 13 | Jd. Mesnard 2024 | Kristie O'Brien vs Julie Willoughby | R +1.2 | D +7.8 | 89% | Likely D |
| 2 | Shawnna Bolick 2024 | Amelia Gallitano vs Shawnna Bolick | R +5.6 | D +8.0 | 88% | Likely D |
| 17 | Venden "Vince" Leach 2024 | Edgar Soto vs Chris King | R +3.9 | D +8.3 | 89% | Likely D |
| 4 | Carine Werner 2024 | Aaron Lieberman vs Carine Werner | R +3.6 | D +8.6 | 90% | Likely D |
| 10 | David Christian Farnsworth 2024 | Blair Moses vs Dave Farnsworth · Nick Fierro (I) | R +21.1 | R +10.4 | 6% | Likely R |
| 28 | Frank Carroll 2024 | Michael Braun vs Frank Carroll | R +23.3 | R +11.8 | 3% | Likely R |
Legislative ballot polls
Weight 3%| Pollster | Field end | D | R |
|---|---|---|---|
| Fabrizio Ward and Impact Research for AARP | 2026-07-28 | 49 | 46 |
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.