Secretary Markwayne Mullin(@SecMullinDHS):DHS will not stop building on the historic progress made to secure the southern border. This action will help counter cartel drone threats, protect our personnel, and strengthen security in the airspace above the border. President Trump promised to secure the border, and we are delivering on that promise through continued action and strong partnership with @USDOT and the @DeptofWar.

Secretary Markwayne Mullin

@SecMullinDHS

Christian. Husband. Father of 6. 9th Secretary of the U.S. Department of Homeland Security under the leadership of President Donald J. Trump.

Joined March 2026

53 Following 189.8K Followers

Secretary Markwayne Mullin@SecMullinDHS

2026.11.09 17:37

DHS will not stop building on the historic progress made to secure the southern border. This action will help counter cartel drone threats, protect our personnel, and strengthen security in the airspace above the border. President Trump promised to secure the border, and we are delivering on that promise through continued action and strong partnership with @USDOT and the @DeptofWar.