Arizona 1st — House 2026 Rep Primary

The Arizona 1st — House rep primary is scheduled for July 21, 2026. The model makes Jay Feely the clear favorite at 84%, ahead of Joseph Chaplik at 11% in a 3-candidate field. Jay Feely leads the field in reported fundraising and 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

  1. Jay Feely — 84%
  2. Joseph Chaplik — 11%
  3. John Trobough — 5%

Probabilities update daily from polls, fundraising, endorsements, and historical results. Last updated July 23, 2026.

All 2026 race forecasts · About the model