Colorado 4th — House 2026 Primary
The Colorado 4th — House primary is scheduled for June 30, 2026. Douglas Mangeris is running unopposed. No public polling is available for this race, so the forecast leans on fundraising, endorsements, candidate profiles, and historical results.
Current win probabilities
- Douglas Mangeris — 100%
Probabilities update daily from polls, fundraising, endorsements, and historical results.