John Fleming (American politician)

John Fleming
Official portrait, 2019
Treasurer of Louisiana
Assumed office
January 8, 2024
GovernorJeff Landry
Preceded byJohn Schroder
White House Deputy Chief of Staff for Planning and Implementation
In office
March 23, 2020 – January 20, 2021
PresidentDonald Trump
Preceded byEmma Doyle (Principal Deputy)
Succeeded byJen O'Malley Dillon (Operations)
Assistant Secretary of Commerce for Economic Development
In office
March 15, 2019 – March 23, 2020
PresidentDonald Trump
Preceded byJay Williams
Succeeded byAlejandra Castillo
Member of the U.S. House of Representatives
from Louisiana's 4th district
In office
January 3, 2009 – January 3, 2017
Preceded byJim McCrery
Succeeded byMike Johnson
Personal details
BornJohn Calvin Fleming Jr.
(1951-07-05) July 5, 1951
PartyRepublican
Spouse
Cindy Fleming
(m. 1978)
Children4
EducationUniversity of Mississippi (BS, MD)
Military service
Branch/serviceUnited States Navy
RankLieutenant Commander

John Calvin Fleming Jr. (born July 5, 1951) is an American politician, physician, and former naval officer serving as Treasurer of Louisiana since 2024. A member of the Republican Party, he previously served as White House Deputy Chief of Staff under President Donald Trump and was the U.S. representative for Louisiana's 4th congressional district from 2009 to 2017.

After working as a family doctor and businessman, Fleming was elected to the U.S. House of Representatives in 2008. He was only the second Republican to hold his House seat since Reconstruction. He was a candidate in the 2016 United States Senate election in Louisiana and finished fifth in the Jungle Primary.

After leaving Congress, Fleming was a Trump administration appointee, first as Deputy Assistant Secretary for Health Information Technology Reform, then as Assistant Secretary of Commerce for Economic Development, and then as a White House aide (as Assistant to the President for Planning and Implementation).

Fleming won the 2023 Louisiana Treasurer election in the November runoff, receiving over 65% of the vote. In December 2024, he announced his candidacy for the United States Senate in 2026, challenging incumbent Bill Cassidy.