Massachusetts House 2020 — Model Retrospective

The model's final pre-election forecast gave Seth Moulton a 72% chance of winning the Massachusetts House 2020 primary. Seth Moulton won, matching the model's top pick.

1. Seth Moulton — 72% model odds (won)
2. All Others — 17% model odds
3. Jamie M. Belsito — 5% model odds
4. Angus G. Mcquilken — 5% model odds

Model accuracy · 2026 race forecasts