The 2026 Louisiana Senate race pits Republican nominee Julia Letlow against Democrat Jamie Davis for the open seat formerly held by Bill Cassidy. Letlow advanced after defeating Cassidy and John Fleming in the Republican primary with support from Donald Trump, while Davis emerged from the Democratic side as a lesser-known challenger emphasizing economic issues. Recent polls show Letlow ahead by roughly four points, though forecasters project a larger Republican edge based on the state's partisan fundamentals. With early voting underway ahead of the November 3 election, trader pricing on margin outcomes reflects uncertainty over turnout, late shifts, and whether the contest stays within single digits or widens as expected in this solidly Republican state.