The Republican nominee holds a dominant position in the TX-21 contest due to the district's consistent R+10 Partisan Voter Index and strong performance by GOP candidates in recent cycles, including Donald Trump's double-digit margins. Chip Roy's retirement created an open seat, but former MLB player Mark Teixeira secured the nomination with over 60 percent in the March 2026 primary, backed by prominent endorsements, while Democrat Kristin Hook emerged from her primary. Forecasters rate the November general election as Solid or Safe Republican, reflecting limited Democratic path to victory in this Hill Country and Bexar County area after mid-decade redistricting. Trader consensus aligns with these structural factors, though the general election remains months away.
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
$59,714 Vol.
$59,714 Vol.
Republican Party
88%
Democratic Party
12%
$59,714 Vol.
$59,714 Vol.
Republican Party
88%
Democratic Party
12%
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...The Republican nominee holds a dominant position in the TX-21 contest due to the district's consistent R+10 Partisan Voter Index and strong performance by GOP candidates in recent cycles, including Donald Trump's double-digit margins. Chip Roy's retirement created an open seat, but former MLB player Mark Teixeira secured the nomination with over 60 percent in the March 2026 primary, backed by prominent endorsements, while Democrat Kristin Hook emerged from her primary. Forecasters rate the November general election as Solid or Safe Republican, reflecting limited Democratic path to victory in this Hill Country and Bexar County area after mid-decade redistricting. Trader consensus aligns with these structural factors, though the general election remains months away.
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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