- Will the Republican Party win the WA-09 House seat?5¢
- Will the Democratic Party win the WA-09 House seat?95¢
This market will resolve according to the party of the candidate who wins the WA-09 congressional district seat in the U.S. House of Representatives in the 2026 midterm elections. The midterm elections will take place on November 3, 2026. A candidate's party will be determined by their ballot-listed or otherwise identifiable affiliation with that party at the time all of the 2026 House elections are conclusively called by this market's resolution sources. A candidate without a ballot-listed affiliation to either the Democrat or Republican parties will be considered a member of one of these parties based on the party with which they most recently expressed their intent to caucus at the time all of the House elections are conclusively called by this market's resolution sources. This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the United States government, specifically the Federal Election Commission (https://www.fec.gov/).
Incumbent Democrat Adam Smith secured advancement from Washington's August 4, 2026, top-two primary in the 9th district with roughly 47-50% of the vote, facing Republican Doug Basler in the November general election. The district's consistent Democratic lean, covering southern and eastern Seattle suburbs, has delivered Smith repeated victories exceeding 60% in recent cycles. Trader consensus at 94.5% for Democrats reflects this structural advantage, historical turnout patterns, and limited Republican infrastructure. A credible challenge would require an unforeseen national Republican surge, major candidate-specific disruption, or significant shift in local voter registration and participation that has not materialized in recent primaries or general elections.