Incumbent Democratic Representative Val Hoyle secured her party's nomination in the May 2026 primary with roughly 78 percent of the vote, while Republican nominee Monique DeSpain advanced decisively from her primary. Oregon's 4th Congressional District carries a D+6 Partisan Voter Index and has consistently favored Democratic candidates in recent cycles, supporting nonpartisan race ratings that classify the seat as solid or safe Democratic. Hoyle maintains a substantial fundraising edge and benefits from incumbency advantages in a district encompassing the southern Willamette Valley and coastal areas. Trader consensus reflected in current market prices assigns the Democratic Party a commanding implied probability, though late-cycle developments such as national economic shifts, candidate health events, or unusually high Republican turnout could still narrow the margin before the November 3 general election.
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
$21,730 Vol.
$21,730 Vol.
Democratic Party
94%
Republican Party
6%
$21,730 Vol.
$21,730 Vol.
Democratic Party
94%
Republican Party
6%
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 Democratic Representative Val Hoyle secured her party's nomination in the May 2026 primary with roughly 78 percent of the vote, while Republican nominee Monique DeSpain advanced decisively from her primary. Oregon's 4th Congressional District carries a D+6 Partisan Voter Index and has consistently favored Democratic candidates in recent cycles, supporting nonpartisan race ratings that classify the seat as solid or safe Democratic. Hoyle maintains a substantial fundraising edge and benefits from incumbency advantages in a district encompassing the southern Willamette Valley and coastal areas. Trader consensus reflected in current market prices assigns the Democratic Party a commanding implied probability, though late-cycle developments such as national economic shifts, candidate health events, or unusually high Republican turnout could still narrow the margin before the November 3 general election.
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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