John Fleming
Louisiana state treasurer, House Freedom Caucus founder, and Trump ally contesting the 27 June 2026 Senate runoff against Julia Letlow.
Last refreshed: 29 May 2026 · Appears in 1 active topic
Can John Fleming beat Julia Letlow in the 27 June Louisiana Senate runoff?
Timeline for John Fleming
Finished second in Louisiana Senate primary with 28.3% and advanced to 27 June runoff
US Midterms 2026: Cassidy out; Letlow meets Fleming on 27 June- Who is John Fleming running in the Louisiana Senate race?
- John Fleming is Louisiana's state treasurer and former US congressman, finishing second in the 17 May 2026 Republican primary with 28.3%. He faces Trump-endorsed Julia Letlow in a 27 June runoff after incumbent Bill Cassidy was eliminated.Source: us-midterms-2026 briefing
- What happened to Bill Cassidy in the Louisiana Senate primary?
- Cassidy finished third with 24.8% and was eliminated, becoming the first elected incumbent senator to lose renomination since Richard Lugar in 2012. His 2021 vote to convict Trump in the impeachment trial is widely credited as the cause.Source: us-midterms-2026 briefing
- What is John Fleming's political background before the Senate race?
- Fleming served in Congress 2009-2017, co-founding the House Freedom Caucus. He then held Trump administration roles including Deputy Chief of Staff and was confirmed as Assistant Secretary of Commerce. He won the 2023 Louisiana treasurer race and has served as state treasurer since 2024.Source: Wikipedia / Ballotpedia
- When is the Louisiana Senate runoff in 2026?
- The Louisiana Republican Senate runoff between Julia Letlow and John Fleming is scheduled for 27 June 2026.Source: us-midterms-2026 briefing
Background
John Calvin Fleming Jr. (born 1951) is Louisiana's state treasurer and a former Republican congressman who served Louisiana's 4th congressional district from 2009 to 2017. A physician by training, he completed a family medicine residency with the US Navy, established a private practice in Minden, Louisiana, and built a franchise business employing over 350 people. In Congress he was one of the founding members of the House Freedom Caucus, placing him on the movement-conservative wing of the Republican Party well before the Trump era. After leaving the House he served in Trump's first administration, including as Deputy Chief of Staff in the West Wing in 2020. He won the 2023 Louisiana Treasurer runoff with over 65% of the vote and has served as state treasurer since January 2024.
In the 17 May 2026 Republican primary for Louisiana's Senate seat, Fleming finished second with 28.3% behind Trump-endorsed Julia Letlow (44.8%), setting up a 27 June 2026 runoff. Incumbent Bill Cassidy finished third with 24.8% and was thus eliminated, becoming the first elected incumbent senator to lose renomination since Richard Lugar in 2012. Cassidy's ouster followed his vote to convict Trump in the 2021 impeachment trial.
Regardless of the 27 June outcome, Louisiana's Senate seat will move further right: both Letlow and Fleming are aligned with Trump's political project, and neither faces a meaningful general-election contest in a state Trump won by a wide margin. Fleming's PATH to the Senate would represent the House Freedom Caucus's founding generation completing a transition from legislative insurgency to institutional control. His campaign is one of two Trump-affiliated establishment-ousting primaries within twelve days in May 2026, the other being Ken Paxton's defeat of John Cornyn in Texas.