Texas's 21st congressional district remains a solidly Republican seat, with the open race following incumbent Chip Roy's decision to run for state attorney general instead of reelection. The district's partisan voting index favors Republicans by roughly 10 points, consistent with Donald Trump's 60% share of the vote there in 2024. Mark Teixeira secured the GOP nomination after winning the March 3, 2026 primary by a wide margin, while Kristin Hook emerged as the Democratic nominee from her party's primary. Cook Political Report and similar forecasters rate the contest Solid R, reflecting the exurban and Hill Country composition that has delivered consistent Republican majorities in recent cycles. With the November 3 general election still months away and no major polling shifts or late developments reported, trader pricing aligns with historical base rates for comparable open seats in Republican-leaning districts.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedTX-21 House Election Winner
$58,715 Vol.
$58,715 Vol.
Republican Party
87%
Democratic Party
13%
$58,715 Vol.
$58,715 Vol.
Republican Party
87%
Democratic Party
13%
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...Texas's 21st congressional district remains a solidly Republican seat, with the open race following incumbent Chip Roy's decision to run for state attorney general instead of reelection. The district's partisan voting index favors Republicans by roughly 10 points, consistent with Donald Trump's 60% share of the vote there in 2024. Mark Teixeira secured the GOP nomination after winning the March 3, 2026 primary by a wide margin, while Kristin Hook emerged as the Democratic nominee from her party's primary. Cook Political Report and similar forecasters rate the contest Solid R, reflecting the exurban and Hill Country composition that has delivered consistent Republican majorities in recent cycles. With the November 3 general election still months away and no major polling shifts or late developments reported, trader pricing aligns with historical base rates for comparable open seats in Republican-leaning districts.
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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