Republicans hold an 88% implied probability of winning white voters in the 2026 Texas Senate election due to consistent polling patterns showing the GOP nominee Ken Paxton leading Democrat James Talarico by double-digit margins among that demographic. Recent surveys from late September and early October, including those by Texas Southern University, Mason-Dixon, and Rasmussen Reports, indicate Paxton capturing 54-59% support from white likely voters compared to 34-37% for Talarico. This edge aligns with longstanding partisan divides in Texas, where Republicans maintain stronger identification and turnout among white voters even as the overall Senate contest remains close. No major late-breaking events have shifted these subgroup dynamics in the past 30 days.