Illinois 92026 HOUSE POLLS

2026 Illinois 9th District House Forecast:

The Pollsmax 2026 Illinois 9th District House forecast currently gives Democrat Daniel Biss a 99.9% chance of defeating Republican John Elleson. Pollsmax projects Biss to receive 69.8% of the vote compared with 30.2% for Elleson, a projected Democratic margin of 39.6 percentage points. The model currently rates the race as Solid Democratic. The forecast is updated using 100,000 simulations incorporating polling and race fundamentals. See the Pollsmax forecast methodology.

The 2026 Illinois 9th District House election features Democrat Daniel Biss and Republican John Elleson. The seat is open in 2026, but the race to fill it is not expected to be competitive. In 2024, Kamala Harris won Illinois' 9th congressional district by 16.5%, and the election for the district's House seat is rated as solid Democratic in 2026.