Mullin sworn in as secretary of Homeland Security
Markwayne Mullin has been sworn in as the ninth secretary of the Department of Homeland Security as the agency approaches 40 days since a government stalemate shut it down.
Markwayne Mullin has been sworn in as the ninth secretary to lead the Department of Homeland Security. His swearing-in comes as the agency nears 40 days since a government stalemate shut it down.