Idaho 1st — House 2026 Dem Primary
The Idaho 1st — House dem primary is scheduled for May 19, 2026. The model makes Kaylee Peterson the heavy favorite at 91%, with Ken Brungardt at 9%. Kaylee Peterson leads the field in reported fundraising. No public polling is available for this race, so the forecast leans on fundraising, endorsements, candidate profiles, and historical results.
Current win probabilities
- Kaylee Peterson — 91%
- Ken Brungardt — 9%
Probabilities update daily from polls, fundraising, endorsements, and historical results. Last updated October 26, 2026.