Massachusetts 32026 HOUSE POLLS

2026 Massachusetts 3rd District House Forecast:

The Pollsmax 2026 Massachusetts 3rd District House forecast currently gives Democrat Lori Trahan a 99.9% chance of defeating Republican Gary Grossi. Pollsmax projects Trahan to receive 73.9% of the vote compared with 26.2% for Grossi, a projected Democratic margin of 47.7 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 Massachusetts 3rd District House election features Democrat Lori Trahan and Republican Gary Grossi. Incumbent Representative Lori Trahan is seeking reelection to a fifth term. In 2024, Kamala Harris won Massachusetts' 3rd congressional district by 7.5%, and the election for the district's House seat is rated as solid Democratic in 2026.