Polymarket users assigned a 76% probability to Democrats winning the Senate and 94% for the House as of November 3, with Kalshi showing nearly identical odds at 75% and 94%. The midterms will determine control of all 435 House seats and 35 of 100 Senate seats. A Democratic Congress could place crypto-friendly figures like Elizabeth Warren and Sherrod Brown in charge of key committees overseeing the digital asset industry. In Ohio's Senate race, Kalshi bettors see a 71% chance that Brown defeats incumbent Senator Jon Husted.