Democratic Rep. Henry Cuellar secured renomination in the March 2026 primary and enters the November general as the clear favorite against Republican nominee Tano Tijerina in Texas’s 28th congressional district. Cuellar’s long tenure, focus on border security, and moderate positioning have sustained his hold in a South Texas district redrawn for 2026 with a modest Republican lean. Tijerina’s primary victory and a late-July endorsement from President Trump have lifted GOP positioning, yet trader pricing reflects limited movement in the race to date. No major late-breaking developments have altered the implied probability that the Democratic nominee will prevail.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedTX-28 House Election Winner
Democratic Party
82%
Republican Party
18%
Democratic Party
82%
Republican Party
18%
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: Dec 16, 2025, 1:13 PM 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...Democratic Rep. Henry Cuellar secured renomination in the March 2026 primary and enters the November general as the clear favorite against Republican nominee Tano Tijerina in Texas’s 28th congressional district. Cuellar’s long tenure, focus on border security, and moderate positioning have sustained his hold in a South Texas district redrawn for 2026 with a modest Republican lean. Tijerina’s primary victory and a late-July endorsement from President Trump have lifted GOP positioning, yet trader pricing reflects limited movement in the race to date. No major late-breaking developments have altered the implied probability that the Democratic nominee will prevail.
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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