← 2026 Senate map · Lean R
Idaho Senate polls
Achilles (I) vs. Risch (R)
Todd Achilles leads the 2026 Idaho Senate race by 0.2 points in PolitiKool's polling average, as of Oct. 11, 2026.
- Achilles 40.5%, Risch 40.3%.
- 5 polls from 3 pollsters, weighted by recency, sample size, pollster record and partisan sponsorship.
- The margin has moved 11.4 points toward Todd Achilles over the past month.
- Rated Lean R, combining the average with the Cook Political Report, Sabato's Crystal Ball and Inside Elections.
- The seat is held by Jim Risch (R).
Idaho Senate polling average
Todd Achilles40.5%
Jim Risch40.3%
MarginAchilles +0.2
Average as of Oct. 11, 2026 · — Todd Achilles · — Jim Risch
Latest Idaho Senate polls
| Dates | Pollster | Sample | Achilles | Risch | Margin |
|---|---|---|---|---|---|
| Sept. 28–30 | Peak Insights (partisan) | 500 LV | 24% | 49% | Risch +25 |
| Sept. 13–16 | Advanced Targeting Research | 700 RV | 50% | 39% | Achilles +11 |
| Aug. 16–19 | The Bullfinch Group | 608 LV | 38% | 33% | Achilles +5 |
| Aug. 11–13 | Peak Insights (partisan) | 500 LV | 18% | 52% | Risch +34 |
| Aug. 4–7 | The Bullfinch Group | 608 LV | 30% | 34% | Risch +4 |
| May 29 – June 1 | The Bullfinch Group | 774 RV | 36% | 40% | Risch +4 |
| March 16–17 | Public Policy Polling (I) | 639 RV | 34% | 48% | Risch +14 |