Illinois 142026 HOUSE POLLS

2026 Illinois 14th District House Forecast:

The Pollsmax 2026 Illinois 14th District House forecast currently gives Democrat Lauren Underwood a 98.6% chance of defeating Republican James Marter. Pollsmax projects Underwood to receive 60% of the vote compared with 40.1% for Marter, a projected Democratic margin of 19.9 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 14th District House election features Democrat Lauren Underwood and Republican James Marter. Incumbent Representative Lauren Underwood is seeking reelection to a fifth term. In 2024, Donald Trump won Illinois' 14th congressional district by 6.5%, and the election for the district's House seat is rated as solid Democratic in 2026.