

Track Washington election odds, candidates, polls, key dates, market volume and race movement across the 2026 races on Prediction Edge.
Washington's 2026 ballot is headlined by its US House races: all ten districts are up on November 3, including an open seat in the 4th District after Republican Dan Newhouse announced he would not seek re-election. Neither the governorship nor a US Senate seat is up this cycle — both next appear in 2028 — so contests for the state Legislature and state Supreme Court round out the slate. Every race first goes through the state's top-two primary on August 4, 2026. This hub connects live market odds with candidate pages, polling context, official dates and market-moving updates as the cycle unfolds.
All ten Washington US House seats are on the November 2026 ballot. Markets track the open 4th District race following Dan Newhouse's retirement, Marie Gluesenkamp Perez's closely contested 3rd District and Suzan DelBene's 1st District.
Explore candidate pages for Washington's major 2026 races — odds, polling, fundraising, endorsements and news.












| Date (Start - End) | Spread | Perez | Hennrich |
|---|---|---|---|
Polling Average | Perez+12.0 | 24.5% | 12.5% |
Emerson CollegeJul 8 - 10 | Perez+14.0 | 25.0% | 11.0% |
Gravis MarketingNov 10 - 12 | Perez+10.0 | 24.0% | 14.0% |