Incumbent Rep. Val Hoyle's bid for a third term in Democratic-leaning Oregon's 4th Congressional District drives trader consensus toward a 90.5% implied probability for the Democratic Party, reflecting the district's partisan tilt, her fundraising dominance, and Republicans' narrow losses in the past two cycles despite competitive general elections. Recent primary filings feature Hoyle facing challenges from Melissa Bird and Dan Bahlen in the May 19 Democratic primary, where Bird critiques Hoyle's economic record and opposition to Trump-era policies, while two lesser-known Republicans vie in their primary. Absent a high-profile GOP nominee or national midterm wave favoring Republicans, odds favor Democrats; potential shifts could arise from a primary upset weakening the nominee, scandals, or turnout surges in rural coastal counties.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedOR-04 House Election Winner
OR-04 House Election Winner
Democratic Party
91%
Republican Party
9%
Democratic Party
91%
Republican Party
9%
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/).
Market Opened: Jan 28, 2026, 11:23 AM ET
Resolver
0x2F5e3684c...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/).
Resolver
0x2F5e3684c...Incumbent Rep. Val Hoyle's bid for a third term in Democratic-leaning Oregon's 4th Congressional District drives trader consensus toward a 90.5% implied probability for the Democratic Party, reflecting the district's partisan tilt, her fundraising dominance, and Republicans' narrow losses in the past two cycles despite competitive general elections. Recent primary filings feature Hoyle facing challenges from Melissa Bird and Dan Bahlen in the May 19 Democratic primary, where Bird critiques Hoyle's economic record and opposition to Trump-era policies, while two lesser-known Republicans vie in their primary. Absent a high-profile GOP nominee or national midterm wave favoring Republicans, odds favor Democrats; potential shifts could arise from a primary upset weakening the nominee, scandals, or turnout surges in rural coastal counties.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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