In Oregon's 1st Congressional District House race, trader consensus heavily favors the Democratic nominee Janelle Bynum at 92.5% implied probability, driven by the district's deep-blue fundamentals—Biden carried it by 63 points in 2020 and it holds a D+8 partisan lean per Cook ratings. Retiring Rep. Suzanne Bonamici's open seat handover to former state Rep. Bynum, who dominated the May primary, reinforces this edge, with forecasts from 538 and others rating it as a safe Democratic hold exceeding 98%. Republican Chad Anderson trails far in sparse polling. Realistic challenges include a major Bynum scandal, depressed Democratic turnout, or a national GOP wave, though historical precedents make these low-probability shifts.
Experimental AI-generated summary referencing Polymarket data · UpdatedOR-01 House Election Winner
OR-01 House Election Winner
Democratic Party
93%
Republican Party
7%
Democratic Party
93%
Republican Party
7%
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...Resolver
0x2F5e3684c...In Oregon's 1st Congressional District House race, trader consensus heavily favors the Democratic nominee Janelle Bynum at 92.5% implied probability, driven by the district's deep-blue fundamentals—Biden carried it by 63 points in 2020 and it holds a D+8 partisan lean per Cook ratings. Retiring Rep. Suzanne Bonamici's open seat handover to former state Rep. Bynum, who dominated the May primary, reinforces this edge, with forecasts from 538 and others rating it as a safe Democratic hold exceeding 98%. Republican Chad Anderson trails far in sparse polling. Realistic challenges include a major Bynum scandal, depressed Democratic turnout, or a national GOP wave, though historical precedents make these low-probability shifts.
Experimental AI-generated summary referencing Polymarket data · Updated

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