Oregon’s 4th congressional district carries a D+6 partisan voter index and has delivered consistent Democratic victories since 2012, anchoring trader consensus around the party’s 93.5 percent odds. Incumbent Democrat Val Hoyle secured her May primary with 75 percent and holds a substantial fundraising edge over Republican nominee Monique DeSpain, who also advanced unopposed in substance. Nonpartisan forecasters rate the race solid or safe Democratic based on historical margins, district geography spanning Eugene’s progressive base and more conservative rural counties, and the absence of polling or events indicating a shift. A major national Republican wave, significant candidate-specific scandal, or sharp drop in Democratic turnout could narrow the gap, though structural factors make such an outcome improbable by 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
$21,725 Vol.
$21,725 Vol.
Democratic Party
94%
Republican Party
6%
$21,725 Vol.
$21,725 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...Oregon’s 4th congressional district carries a D+6 partisan voter index and has delivered consistent Democratic victories since 2012, anchoring trader consensus around the party’s 93.5 percent odds. Incumbent Democrat Val Hoyle secured her May primary with 75 percent and holds a substantial fundraising edge over Republican nominee Monique DeSpain, who also advanced unopposed in substance. Nonpartisan forecasters rate the race solid or safe Democratic based on historical margins, district geography spanning Eugene’s progressive base and more conservative rural counties, and the absence of polling or events indicating a shift. A major national Republican wave, significant candidate-specific scandal, or sharp drop in Democratic turnout could narrow the gap, though structural factors make such an outcome improbable by 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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