- Will the Democratic Party win the OR-01 House seat?95¢
- Will the Republican Party win the OR-01 House seat?5¢
This market will resolve according to the party of the candidate who wins the OR-01 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 Democratic Representative Suzanne Bonamici secured her party's nomination with over 86% in the May 2026 primary against limited opposition and now faces Republican Barbara Kahl in the November general election. Oregon's 1st district, encompassing northwestern Portland suburbs and coastal areas, has consistently delivered large Democratic margins in recent cycles, reflected in unanimous "Safe Democratic" or "Solid Democratic" ratings from forecasters. Traders price the Democratic outcome at 94.5% based on this structural advantage, Bonamici's long tenure since 2012, and the absence of competitive Republican infrastructure. Scenarios that could narrow the gap include a severe national Republican wave, a major scandal involving the incumbent, or unusually high turnout shifts among suburban voters, though historical patterns and the district's partisan lean make such shifts improbable before Election Day.