Idaho 1st — House 2026 Dem Primary

The Idaho 1st — House dem primary is scheduled for May 19, 2026. The model makes Kaylee Peterson the clear favorite at 88%, ahead of Ken Brungardt at 12%. 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

  1. Kaylee Peterson — 88%
  2. Ken Brungardt — 12%

Probabilities update daily from polls, fundraising, endorsements, and historical results.

All 2026 race forecasts · About the model