Incumbent Christian Menefee leads the Democratic primary runoff against Al Green on May 26 in Texas's 18th Congressional District, a reliably blue Houston-area seat with a D+21 partisan lean where Democrats have won general elections by 70% margins historically. Trader consensus prices Democratic Party victory at 94.5% reflecting the district's strong urban, Hispanic-majority demographics, overwhelming Biden performance in recent presidential cycles, and minimal Republican turnout in the March 3 primary where nominee Ronald Whitfield prevailed with just 55% in a low-energy race. Recent redistricting kept the seat safely Democratic despite shifts incorporating parts of Al Green's former district. Scenarios to upend this include a major scandal hitting the Democratic nominee, unforeseen health issues given Green's age, or an extreme national Republican wave, though structural barriers favor Democrats ahead of the November 3 general election.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedTX-18 House Election Winner
TX-18 House Election Winner
Democratic Party
95%
Republican Party
4%
Democratic Party
95%
Republican Party
4%
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...Incumbent Christian Menefee leads the Democratic primary runoff against Al Green on May 26 in Texas's 18th Congressional District, a reliably blue Houston-area seat with a D+21 partisan lean where Democrats have won general elections by 70% margins historically. Trader consensus prices Democratic Party victory at 94.5% reflecting the district's strong urban, Hispanic-majority demographics, overwhelming Biden performance in recent presidential cycles, and minimal Republican turnout in the March 3 primary where nominee Ronald Whitfield prevailed with just 55% in a low-energy race. Recent redistricting kept the seat safely Democratic despite shifts incorporating parts of Al Green's former district. Scenarios to upend this include a major scandal hitting the Democratic nominee, unforeseen health issues given Green's age, or an extreme national Republican wave, though structural barriers favor Democrats ahead of the November 3 general election.
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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