Three Senate Republicans Won't Seek Re-election; North Carolina Seat Could Flip

Senators Bill Cassidy of Louisiana, John Cornyn of Texas, and Thom Tillis of North Carolina are retiring in 2026. Tillis, who announced in June 2025, won his last race by 1.8 percentage points—the narrowest margin of the three. Democrats see his seat as a potential pickup in the midterm elections.