
William Cassidy
IncumbentEndorsedRepublican Candidate for U.S. Senate - Louisiana
About William
Physician and Statesman: Louisiana's Conservative Voice in the U.S. Senate
Dr. William Morgan Cassidy is a respected Republican leader who has dedicated his professional life to serving Louisiana through medicine and public policy. Born in Highland Park, Illinois on September 28, 1957, Cassidy's journey to becoming a prominent national politician began with his deep commitment to healthcare and community service.
After earning his medical degree from Louisiana State University School of Medicine, Cassidy established himself as a respected gastroenterologist, working extensively in healthcare systems that serve underserved communities. His medical background provided him with a unique perspective on healthcare policy, which would later become a cornerstone of his political career. In 2006, Cassidy entered public service by winning election to the Louisiana State Senate, representing parts of Baton Rouge and demonstrating his early commitment to conservative governance and local community leadership.
Cassidy's political trajectory accelerated in 2008 when he was elected to the U.S. House of Representatives, representing Louisiana's 6th congressional district. During his congressional tenure, he established himself as a principled conservative focused on practical policy solutions, particularly in healthcare reform. In 2014, he successfully challenged Democratic incumbent Mary Landrieu to become a United States Senator, a position he has held since 2015 and was re-elected to in 2020.
As a senator, Cassidy has distinguished himself as a thoughtful, moderate Republican willing to work across party lines while maintaining strong conservative principles. He currently chairs the Senate Health, Education, Labor, & Pensions (HELP) Committee, where he has been a leading voice on healthcare policy, medical research, and education reform. His medical background uniquely positions him to provide substantive insights into complex healthcare legislation and policy development.
Throughout his career, Cassidy has been recognized for his independence and commitment to principled governance. He has been unafraid to take principled stands, including voting to convict President Donald Trump during his second impeachment trial and later declining to endorse Trump's 2024 presidential candidacy. These actions underscore Cassidy's dedication to constitutional principles and his willingness to prioritize institutional integrity over partisan loyalty. As a senator, he continues to champion conservative values, advocate for Louisiana's interests, and contribute meaningful policy solutions to the most pressing national challenges.
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Last updated: February 18, 2026
