Mullin sworn in as DHS chief after GOP fracture forced Dem to save nomination

Sen. Markwayne Mullin, R-Okla., was sworn in as the U.S.’ ninth secretary of Homeland Security on Tuesday, with President Donald Trump in attendance.

Mullin, 48, is a former mixed martial arts champion and plumbing business owner who will replace outgoing Secretary Kristi Noem, a South Dakota Republican recently picked to lead the Shield of the Americas security initiative announced by Trump earlier this month.

Mullin will take the reins of DHS at a time of increased turmoil and congressional scrutiny at the agency...