Incumbent Republican Mike Simpson secured his party's nomination in the May 2026 primary, positioning him strongly for the November general election in Idaho's 2nd congressional district. The seat's partisan composition, consistent Republican performance in recent cycles, and Simpson's long tenure drive the market's 93.5% consensus for the Republican outcome. Limited Democratic infrastructure and a first-time challenger further reinforce this edge. Scenarios that could shift probabilities include an unforeseen health or ethics development affecting the incumbent, an unusually strong national partisan wave altering turnout patterns, or sustained independent candidate momentum fragmenting the vote in ways not seen in prior cycles.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedID-02 House Election Winner
$30,364 Vol.
$30,364 Vol.
Republican Party
94%
Democratic Party
7%
$30,364 Vol.
$30,364 Vol.
Republican Party
94%
Democratic 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, 11:08 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 Republican Mike Simpson secured his party's nomination in the May 2026 primary, positioning him strongly for the November general election in Idaho's 2nd congressional district. The seat's partisan composition, consistent Republican performance in recent cycles, and Simpson's long tenure drive the market's 93.5% consensus for the Republican outcome. Limited Democratic infrastructure and a first-time challenger further reinforce this edge. Scenarios that could shift probabilities include an unforeseen health or ethics development affecting the incumbent, an unusually strong national partisan wave altering turnout patterns, or sustained independent candidate momentum fragmenting the vote in ways not seen in prior cycles.
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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