IL-11 House forecast
Safe Dem2024 lines
Polls close . Statewide at 7:00 PM local time
Foster 96% chance
- Bill Foster (D)0% past 7 days96%
- Jeff Walter (R)0% past 7 days3%
Chance over time
- Foster96%
- Walter3%
Chance over time, past month: Foster from 95% to 96%; Walter from 5% to 3%.
| Date | Foster | Walter |
|---|---|---|
| Sep 22, 2026 | 95% | 5% |
| Sep 29, 2026 | 96% | 5% |
| Oct 6, 2026 | 96% | 3% |
| Oct 14, 2026 | 96% | 2% |
| Oct 21, 2026 | 96% | 3% |
Projected margin
Most likely Foster by 25–30 · 8 in 10: Foster +15.4 to Foster +31.7
| Margin | Chance |
|---|---|
| Walter wins | <1% |
| Foster by 0–5 | <1% |
| Foster by 5–10 | 4% |
| Foster by 10–15 | 4% |
| Foster by 15–20 | 27% |
| Foster by 20–25 | 21% |
| Foster by 25–30 | 32% |
| Foster by 30–35 | 7% |
| Foster by 35+ | 5% |