Louisiana US Senate 2026
Election day is November 3, 2026. A statewide contest in Louisiana.
Who is favoured in Louisiana US Senate?
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What the Louisiana US Senate election decides
The Senate confirms federal judges and cabinet officers, ratifies treaties, and can stop legislation the House passes. With a six-year term and a hundred-member chamber, a single seat is a larger share of the institution than any House district, which is why Senate races draw national money into state contests.
Each state sends two senators regardless of population, so this seat carries the same weight as California's or Wyoming's. Louisiana voters fill it alongside all 6 of the state's House seats, and a Senate term runs six years, spanning two future Congresses and, in this case, the next presidential election.
How Louisiana votes
Louisiana's politics are inseparable from oil and gas, the port economy of the Mississippi, and recovery from repeated storms. Republicans dominate federally while its unusual all-party primary system shapes statewide contests. That backdrop is the ground any Louisiana campaign fights on, and it is what the Electorate HQ simulation reads first when it weighs a ticket's platform against this contest.
About this race
The 2026 United States Senate election in Louisiana will be held on November 3, 2026, to elect a member of the United States Senate to represent the state of Louisiana. Republican congresswoman Julia Letlow and Democratic Tensas Parish police juror Jamie Davis are the nominees for their respective parties. The winner will succeed two-term Republican incumbent Bill Cassidy, who was defeated in the primary.
Considered vulnerable to a Republican challenger after he voted to convict President Donald Trump in his second impeachment trial, Cassidy received 24.8% of the vote in the May 16 primary behind Letlow's 44.8% and state treasurer John Fleming's 28.3%. Letlow, endorsed by Trump, advanced to a runoff against Fleming on June 27 and won the nomination with 56.9% of the vote. A Democratic runoff between Davis and political consultant Gary Crockett was held the same day, which Davis won with 79.9% of the vote.
With the enactment of House Bill 17 in 2024, the race is the first U.S. Senate election in Louisiana to utilize party primaries instead of a single blanket primary since 2010. Democrats have not won a Senate election in Louisiana since 2008.
Latest coverage of the Louisiana US Senate race
Louisiana Senate Primary Runoff Election 2026 Live ResultsCheat sheet: Navigating Louisiana's 2026 electionsCan Jamie Davis run a competitive Louisiana U.S. Senate campaign?The rest of the Louisiana ballot
Every Louisiana House district, the counties inside each one, and an address lookup that resolves your exact districts are on the Louisiana state page.
Analysis covering Louisiana
Alabama has the most evenly sized congressional map in the country
Every redistricting argument is about the extremes. Here is the opposite: the state whose seven districts land within a factor of three of each other.
The 2026 Senate map covers 62% of the country and 70% of the states
Thirty-five of fifty states vote for Senate this year. Weighted by people rather than states the share drops, and that gap is the design of the chamber.