Incumbent Ron Estes secured the Republican nomination in the August 2026 primary with over 80 percent of the vote in Kansas’s 4th Congressional District, facing Democrat Katy Tyndell in the November general election. The district’s consistent Republican performance, including double-digit margins in prior cycles and a partisan voting index favoring the GOP, underpins trader pricing that heavily favors the Republican outcome. Ratings from outlets such as the Cook Political Report classify the seat as solidly Republican, reflecting limited historical Democratic competitiveness and the structural advantages of incumbency. A national political shift, unforeseen scandal, or significant change in turnout patterns could narrow the gap, though no such developments have emerged in recent filings or assessments.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedKS-04 House Election Winner
$71,912 Vol.
$71,912 Vol.
Ron Estes (R)
93%
Katy Tyndell (D)
7%
$71,912 Vol.
$71,912 Vol.
Ron Estes (R)
93%
Katy Tyndell (D)
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, 11:09 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 Ron Estes secured the Republican nomination in the August 2026 primary with over 80 percent of the vote in Kansas’s 4th Congressional District, facing Democrat Katy Tyndell in the November general election. The district’s consistent Republican performance, including double-digit margins in prior cycles and a partisan voting index favoring the GOP, underpins trader pricing that heavily favors the Republican outcome. Ratings from outlets such as the Cook Political Report classify the seat as solidly Republican, reflecting limited historical Democratic competitiveness and the structural advantages of incumbency. A national political shift, unforeseen scandal, or significant change in turnout patterns could narrow the gap, though no such developments have emerged in recent filings or assessments.
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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