The Democratic nominee wins the 2026 U.S. Senate election in Texas.
Texas holds a pivotal U.S. Senate election in the 2026 midterms. The market resolves to yes if the Democratic candidate wins the seat, including any run-offs.
Across 6 frontier models answering independently, the panel thinks this is unlikely: the median is 20%.
They broadly agree, 24 points between Qwen at 37% and Claude at 13%.
Money disagrees. The market sits at 63%, so the models are 43 points less confident than people with cash on the outcome — one of the wider gaps in the archive.
Nothing is settled until 4 Nov 2026, when the outcome is checked against sources and every number above gets a permanent score.
- AI edge
- -43 pts
- Moved this week
- +3 pts
- Volume
- $1.0M
The models are sharply less confident than traders risking real money: 20% against 63%.
What each one said
-
QwenAlibaba
Texas has trended competitive but no Democrat has won a statewide race since 1994; the GOP's structural edge in rural turnout persists.
- Texas hasn't elected a Democrat statewide since Ann Richards lost in 1994; Beto O'Rourke lost by 2.6 points in 2018 and by 9.5 in 2022, showing the gap widened not…
- The 2026 midterm environment may favor Democrats nationally, but Texas's R+5 partisan lean and the state's growing rural/suburban Republican coalition make a flip an…
- A Democratic win would require either a historically toxic national environment for Republicans or a uniquely weak GOP nominee—neither has materialized as of early…
37% -
GeminiGoogle
Texas remains a structural Republican stronghold where Democrats consistently narrow margins but fail to breach the 50% threshold.
- No Democrat has won statewide office in Texas since 1994, establishing a formidable baseline hurdle for any challenger.
- Midterm dynamics favor the party out of the White House, giving Democrats a mild tailwind against incumbent John Cornyn.
- A massive Latino swing back toward Democrats alongside suburban shifts could flip it, but recent cycles show Texas rightward drift.
27% -
DeepSeekDeepSeek
Texas is red enough that a Democrat needs a national wave plus a weak GOP nominee, and neither is locked in yet.
- Texas has not elected a Democrat to statewide federal office since 1994; the 2018 Beto near-miss still lost by 2.6 points in a strong blue year.
- The 2026 map is GOP-favorable overall, and Texas's Senate seat is rated likely Republican by Cook and Sabato as of early October 2026.
- Democrats would need roughly a 4-6 point national environment shift plus a flawed Republican nominee like Paxton to flip it; that combination is plausible but not…
22% -
GPTOpenAI
Texas’s Republican lean and the incumbent-party infrastructure remain the central barrier despite a potentially favorable midterm climate.
- Republicans have won every statewide Texas race since 1994; Democrats’ 2018 Senate near-miss has not become a repeatable win.
- A Democratic win needs its nominee to outrun the state’s GOP baseline while benefiting from turnout and a weak Republican ticket by Nov. 3.
- Late polling showing a Democrat within roughly 2 points, or a major GOP nominee scandal, would materially raise the chance.
18% -
GrokxAI
Dems must flip a structurally red Texas Senate seat with one month left.
- GOP has won every Texas statewide race since 1994; Cornyn-type incumbents typically hold 8-12pt edges.
- 2026 midterms favor the out-party, but a Dem White House would widen the GOP structural lead further.
- Only a late polling collapse or runoff upset would flip it; 2018 Beto (2.6pt loss) is the high-water mark.
18% -
ClaudeAnthropic
Texas remains structurally red; Democrats need a major midterm wave plus a weak GOP nominee to flip this seat.
- Texas hasn't elected a Democratic senator since 1988, and statewide margins still favor Republicans by mid-single digits.
- Midterm environment and Trump approval could help Democrats, but Cornyn/Paxton primary chaos adds uncertainty without guaranteeing a flip.
- A clear generic-ballot Democratic wave nationally plus a flawed GOP nominee would be the main path to raise this probability.
13%
6 of 6 models answered · 24 points between the highest and lowest. None was shown the market price.
Resolution criteria
This market will resolve according to the winner of the 2026 midterm Texas U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The candidates may be named in the contract for the convenience of traders. In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of the party. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Question sourced from Polymarket on 4 Oct 2026. Forecast by google/gemini-3.8-flash, anthropic/claude-sonnet-5, openai/gpt-5.6-terra, x-ai/grok-4.6, deepseek/deepseek-v4.1-flash, qwen/qwen3.8-max-0902 via OpenRouter.