Massachusetts 8th — House 2026 Dem Primary
The Massachusetts 8th — House dem primary is scheduled for September 1, 2026. The model makes Stephen Lynch the clear favorite at 81%, ahead of Patrick Roath at 19%. Stephen Lynch is the incumbent and Patrick Roath leads the field in reported fundraising and has the most tracked endorsements. Public polling is available for this race and feeds the forecast alongside fundraising, endorsements, and historical results.
Current win probabilities
- Stephen Lynch (incumbent) — 81%
- Patrick Roath — 19%
Probabilities update daily from polls, fundraising, endorsements, and historical results. Last updated July 23, 2026.