California 182026 HOUSE POLLS

2026 California 18th District House Forecast:

The Pollsmax 2026 California 18th District House forecast currently gives Democrat Zoe Lofgren a 99.9% chance of defeating Republican Shane Lewis. Pollsmax projects Lofgren to receive 70.1% of the vote compared with 29.9% for Lewis, a projected Democratic margin of 40.2 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 California 18th District House election features Democrat Zoe Lofgren and Republican Shane Lewis. Incumbent Representative Zoe Lofgren is seeking reelection to a seventeenth term. In 2024, Kamala Harris won California's 18th congressional district by 21.5%, and the election for the district's House seat is rated as solid Democratic in 2026. California conducted mid-decade redistricting prior to the midterms, and the state's new district map benefits Democrats overall.