Incumbent Rep. Steven Horsford (D) secured the Democratic nomination automatically after no challengers filed by the March 16, 2026, deadline, bolstering trader consensus at 84.5% for a Democratic hold in Nevada's 4th Congressional District. Horsford's strong fundraising—over $3 million raised—and profile as a moderate former state Senate leader underpin the lopsided odds, despite the district's competitiveness, where Kamala Harris won by two points and Donald Trump carried it narrowly in 2024. No top Republican recruit has emerged for the June 9 GOP primary, contributing to the party's slim 13% implied probability amid national generic ballot polls favoring Democrats by 3–5 points. A strong GOP nominee could narrow the gap ahead of 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. · UpdatedNV-04 House Election Winner
NV-04 House Election Winner
Democratic Party
86%
Republican Party
14%
Democratic Party
86%
Republican Party
14%
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: Dec 16, 2025, 12:24 PM 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 Rep. Steven Horsford (D) secured the Democratic nomination automatically after no challengers filed by the March 16, 2026, deadline, bolstering trader consensus at 84.5% for a Democratic hold in Nevada's 4th Congressional District. Horsford's strong fundraising—over $3 million raised—and profile as a moderate former state Senate leader underpin the lopsided odds, despite the district's competitiveness, where Kamala Harris won by two points and Donald Trump carried it narrowly in 2024. No top Republican recruit has emerged for the June 9 GOP primary, contributing to the party's slim 13% implied probability amid national generic ballot polls favoring Democrats by 3–5 points. A strong GOP nominee could narrow the gap ahead of 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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