Trader consensus strongly favors a Republican victory in Washington's 4th Congressional District House race at 82%, driven by the district's R+10 partisan voter index and history of large GOP margins, even amid top-two primary challenges like 2024's incumbent Dan Newhouse narrowly defeating Jerrod Sessler 52%-46%. Newhouse's December 2025 retirement opened the seat, but a crowded Republican field—including state Sen. Matt Boehnke, Sessler, and Amanda McKinney—contrasts with Democrat John Duresky as the lone major challenger, underscoring weak Democratic opposition in this safe Republican seat per Cook Political Report and Sabato's Crystal Ball ratings. No notable developments have emerged in the past 30 days, with the August 4 top-two primary as the next key event that could shape general election dynamics.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedWA-04 House Election Winner
WA-04 House Election Winner
$23,963 Vol.
$23,963 Vol.
Republican Party
82%
Democratic Party
15%
$23,963 Vol.
$23,963 Vol.
Republican Party
82%
Democratic Party
15%
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, 11:24 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...Trader consensus strongly favors a Republican victory in Washington's 4th Congressional District House race at 82%, driven by the district's R+10 partisan voter index and history of large GOP margins, even amid top-two primary challenges like 2024's incumbent Dan Newhouse narrowly defeating Jerrod Sessler 52%-46%. Newhouse's December 2025 retirement opened the seat, but a crowded Republican field—including state Sen. Matt Boehnke, Sessler, and Amanda McKinney—contrasts with Democrat John Duresky as the lone major challenger, underscoring weak Democratic opposition in this safe Republican seat per Cook Political Report and Sabato's Crystal Ball ratings. No notable developments have emerged in the past 30 days, with the August 4 top-two primary as the next key event that could shape general election dynamics.
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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