Watch Live: Markwayne Mullin Sworn in as Secretary of the Department of Homeland Security

Former Senator Markwayne Mullin is sworn in as the next Secretary of the Department of Homeland Security (DHS) on Tuesday, March 24.

Mullin was confirmed as the new DHS chief on Monday by a 54-45 vote in the Senate.

President Donald Trump will attend the ceremony along with Mullin’s family.