Republican Senate seats after the 2026 midterm elections?

"Republican Senate seats after the 2026 midterm elections?" is a political prediction market focused on how many seats the Republican Party will hold in the US Senate after the 2026 midterm elections. The market resolves based on all Senate elections scheduled for November 2026, including any special elections, with the final count determined once the races are called by Associated Press, Fox News, and NBC, or by official certification if needed. The forecast reflects control of Congress and can shift as campaigns develop, candidate affiliations become clearer, and runoff outcomes are decided. The midterm elections are scheduled for November 3, 2026, and the market has been active since December 19, 2025. Current market probability is about 27.5%, indicating traders see this outcome as possible but not the baseline expectation. In prediction market terms, the odds incorporate market sentiment, election forecasts, and resolution rules tied to Senate results across the United States. This event is relevant for Congress, US election watchers, and anyone tracking Republican and Democratic Senate control heading into the 2026 midterms.