Incumbent Republican Russ Fulcher secured the party's nomination in the May 2026 primary for Idaho's 1st congressional district and enters the November general election against Democrat Kaylee Peterson plus minor-party and independent challengers. The district's R+22 partisan voter index and consistent Republican performance in recent cycles, including Fulcher's 71% share in 2024, underpin the strong trader consensus. July 2026 polling showed Fulcher holding double-digit leads in head-to-head matchups, reflecting limited Democratic infrastructure and fundraising in the Panhandle and western Boise area. A late scandal, significant national midterm backlash, or unusually high independent turnout could narrow margins, though the structural Republican advantage has historically limited such shifts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedID-01 House Election Winner
$48,155 Vol.
$48,155 Vol.
Republican Party
95%
Democratic Party
4%
$48,155 Vol.
$48,155 Vol.
Republican Party
95%
Democratic Party
4%
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 Russ Fulcher secured the party's nomination in the May 2026 primary for Idaho's 1st congressional district and enters the November general election against Democrat Kaylee Peterson plus minor-party and independent challengers. The district's R+22 partisan voter index and consistent Republican performance in recent cycles, including Fulcher's 71% share in 2024, underpin the strong trader consensus. July 2026 polling showed Fulcher holding double-digit leads in head-to-head matchups, reflecting limited Democratic infrastructure and fundraising in the Panhandle and western Boise area. A late scandal, significant national midterm backlash, or unusually high independent turnout could narrow margins, though the structural Republican advantage has historically limited such shifts.
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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