Markwayne Mullin

Markwayne Mullin
Official portrait, 2022
United States Secretary of Homeland Security
Nominee
Assuming office
TBD
PresidentDonald Trump
SucceedingKristi Noem
United States Senator
from Oklahoma
Assumed office
January 3, 2023
Serving with James Lankford
Preceded byJim Inhofe
Member of the U.S. House of Representatives
from Oklahoma's 2nd district
In office
January 3, 2013 – January 3, 2023
Preceded byDan Boren
Succeeded byJosh Brecheen
Personal details
Born (1977-07-26) July 26, 1977
CitizenshipAmerican
Cherokee Nation
PartyRepublican
Spouse
Christie Rowan
(m. 1997)
Children6
EducationOklahoma State University Institute of Technology (AAS)
WebsiteSenate website
Campaign website

Markwayne Mullin (born July 26, 1977) is an American politician and businessman serving since 2023 as Oklahoma's junior United States senator. A member of the Republican Party, he was elected in a special election in 2022 to serve the remainder of Jim Inhofe's term.

A member of the Cherokee Nation, Mullin is the first Native American U.S. senator since Ben Nighthorse Campbell retired in 2005. He is also the second Cherokee citizen elected to the Senate since 1925. From 2013 to 2023, Mullin served as the U.S. representative for Oklahoma's 2nd congressional district.

On March 5, 2026, President Donald Trump nominated Mullin as secretary of homeland security replacing Kristi Noem. His hearing before the Senate Committee on Homeland Security and Governmental Affairs is scheduled for March 18.