The TX-08 House Election Margin of Victory event on Polymarket is a set of contracts tied to the 2026 U.S. House election in Texas's 8th congressional district. The election is scheduled for November 3, 2026 [1][2]. The Wikipedia article on the 2026 Texas House elections states that the elections will be held that day to elect the state's thirty-eight U.S. representatives, one from each district, alongside other federal, state and local races, and that primaries took place on March 3, 2026, with runoffs on May 26 where needed [2]. The contract is therefore about a future result. It does not report an outcome. The central measure is the margin of victory. The rules define it as the absolute difference between the percentages of valid votes won by the first-place and second-place candidates. Each percentage is the candidate's valid votes divided by all valid votes cast in the election [1]. Each individual contract asks whether the Republican Party candidate wins by a stated range, or whether the Democratic Party candidate wins outright [1]. Independent candidates do not count as either party option [1]. The rules also set how edge cases are handled. If the reported margin falls exactly on a boundary between two brackets, the contract resolves to the higher margin bracket [1]. If candidates tie for the most valid votes, the rules send the outcome to a bracket determined by ballot-listed last names, with separate treatment when one tied candidate is unlisted [1]. If a party's nominee is replaced before election day, the contract name is updated and the market resolves based on the replacement nominee [1]. Resolution depends on the official count. The rules say the market resolves on the official vote count once it has been made official, using the results certified by the state electoral authority, though consensus credible reporting may also be used [1]. If a recount starts before the total is official, the market stays open until the recount is complete and the vote is certified [1]. If results are not known definitively by June 30, 2027 at 11:59 PM ET, the market resolves to "Other" [1]. The listed end time in the provider data is 2026-11-04T04:59:00Z [1]. That is the contract's closing time, not the date the outcome is determined. Resolution depends on certification as described above.

Historical Context

Texas holds elections for all thirty-eight of its U.S. House seats together. The 2024 elections were held on November 5, 2024, coinciding with the presidential election, and the primaries took place on March 5, 2024 [3]. The 2026 cycle follows the same structure, with primaries on March 3, 2026 and runoffs on May 26 where no candidate passed 50 percent [2]. The supplied sources do not describe the district's past margins or results, so the historical background here is limited to the election calendar.

Frequently Asked Questions