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2026 U.S. Senate race in Louisiana

Election: 11/3/2026
United States Senate • Louisiana
Updated: 4/6/2026

Louisiana’s 2026 U.S. Senate race features incumbent Republican Bill Cassidy seeking another term against a crowded field that includes Republican challengers John Fleming and Julia Letlow and Democratic candidates Nick Albares, Gary Crockett, Jamie Davis, and Jamie LaBranche, plus Mark Spencer. Louisiana uses a closed primary system, and the race matters because the state’s Senate seat is one of the few competitive Republican-held contests in 2026; the main contrasts are over alignment with Donald Trump, party establishment support, and which candidate can consolidate primary voters in a likely runoff.

Latest Poll

American Pulse Research & Polling · Mar 25

Letlow
30.5%
Fleming
24.5%
Cassidy
20.5%
2 polls total — view all ↓

Candidates

Bill Cassidy

Bill Cassidy

R Incumbent

Bill Cassidy is the incumbent U.S. senator from Louisiana and a physician by training. He has emphasized his record on health care, energy, border security, disaster recovery, and conservative priorities, while also highlighting his work with President Trump on some legislation. Cassidy has served in the Senate since 2015 after earlier service in the Louisiana state Senate and U.S. House.

John Fleming is a Republican candidate in the Louisiana Senate primary and, as of 2026, serves as Louisiana state treasurer. He previously represented Louisiana’s 4th Congressional District in the U.S. House and has also worked as a physician, business owner, and Navy officer. His campaign has framed him as a conservative aligned with President Trump and focused on border security, Louisiana jobs, and traditional Republican priorities.

Julia Letlow is a Republican U.S. representative from Louisiana’s 5th Congressional District and a candidate for the Senate seat in 2026. Before Congress, she worked in higher education and university administration, and her campaign has emphasized conservative themes such as border security, law enforcement, education, and support for President Trump. She entered Congress in 2021 after winning a special election to succeed her late husband, Luke Letlow.

Polling

American Pulse Research & Polling Mar 25, 2026
n=455
Julia Letlow
30.5%
John Fleming
24.5%
Bill Cassidy
20.5%
Julia Letlow
36.7%
John Fleming
33.9%
Julia Letlow
39.2%
John Fleming
24%
Bill Cassidy
18%
Source
Quantus Insights Feb 25, 2026
n=1,428
John Fleming
34%
Julia Letlow
25%
Bill Cassidy
20%
Source

Data Analysis Information

Data compiled from public sources and analyzed using AI. Last updated 4/6/2026. Visit candidate websites for the most current information.

Models: GPT-5 MiniGPT-5 Nano

© 2026 Smarter.vote. Analyzing public information to help voters make informed decisions.

Always verify information by visiting candidate websites directly. This tool provides analysis for informational purposes only.