Washington’s 4th Congressional District carries a Cook Partisan Voter Index of R+10, reflecting consistent Republican advantages in presidential voting and positioning the seat as solidly Republican across independent race ratings. Incumbent Dan Newhouse’s retirement created an open seat, yet the August 4, 2026 top-two primary produced a general-election matchup between Republican Yakima County Commissioner Amanda McKinney and Democrat John Duresky. McKinney’s plurality in the primary consolidated Republican support in a district encompassing Yakima and the Tri-Cities, while Democratic performance remains limited by the area’s partisan composition and voter registration patterns. These structural factors, combined with historical election results, underpin trader consensus favoring the Republican nominee heading into November.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · ActualizadoWA-04 Ganador de las elecciones de la Cámara
$38,322 Vol.
$38,322 Vol.
Partido Republicano
89%
Partido Demócrata
8%
$38,322 Vol.
$38,322 Vol.
Partido Republicano
89%
Partido Demócrata
8%
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/).
Mercado abierto: 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...Washington’s 4th Congressional District carries a Cook Partisan Voter Index of R+10, reflecting consistent Republican advantages in presidential voting and positioning the seat as solidly Republican across independent race ratings. Incumbent Dan Newhouse’s retirement created an open seat, yet the August 4, 2026 top-two primary produced a general-election matchup between Republican Yakima County Commissioner Amanda McKinney and Democrat John Duresky. McKinney’s plurality in the primary consolidated Republican support in a district encompassing Yakima and the Tri-Cities, while Democratic performance remains limited by the area’s partisan composition and voter registration patterns. These structural factors, combined with historical election results, underpin trader consensus favoring the Republican nominee heading into November.
Resumen experimental generado por IA con datos de Polymarket. Esto no es asesoramiento de trading y no influye en cómo se resuelve este mercado. · Actualizado

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