Massachusetts Governor 2026 Rep Primary
The Massachusetts Governor rep primary is scheduled for September 1, 2026. The model makes Michael Minogue the clear favorite at 76%, ahead of Brian Shortsleeve at 24%. Michael Minogue leads the field in reported fundraising and Brian Shortsleeve 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
- Michael Minogue — 76%
- Brian Shortsleeve — 24%
Probabilities update daily from polls, fundraising, endorsements, and historical results. Last updated July 23, 2026.