Markwayne Mullin: Biography, DHS Role, Career and Family
Markwayne Mullin is an American Republican politician, businessman and former professional mixed martial arts fighter who has served as the ninth U.S. secretary of homeland security since March 24, 2026. Before joining President Donald Trump’s Cabinet, Mullin represented Oklahoma in Congress for 13 years—10 years in the U.S. House of Representatives followed by more than…