The Oklahoma Republican comes to the helm in the midst of a shutdown that has left some 100,000 of the department's more than a quarter-million employees working without pay.

Markwayne Mullin was sworn in on Tuesday as the new Secretary of the Department of Homeland Security, where he’ll inherit an ongoing DHS shutdown and President Trump’s immigration enforcement agenda.

Mullin, known as an ally of U.S. President Donald Trump and as a fiery personality, inherits an agency facing backlash over its immigration policy.

Markwayne Mullin was sworn in as Department of Homeland Security secretary during a ceremony at the Oval Office.

The Oklahoma Republican faced a glide path to confirmation with the help of two Democratic senators.

WASHINGTON — The Senate confirmed Markwayne Mullin to replace Kristi Noem as Homeland Security secretary on Monday, following a fiery hearing last week where Sen. Rand Paul (R-Ky.) claimed his colleague was too angry for the promotion.

Oklahoma Gov. Kevin Stitt on Tuesday chose energy executive Alan Armstrong to fill Sen. Markwayne Mullin's seat through the end of year.

A Cherokee Nation member who has served as Oklahoma’s junior senator, Mr. Mullin will take charge at a pivotal time.

President Donald Trump gave a speech at Homeland Security Secretary Markwayne Mullin’s swearing-in ceremony, in which he commented on Mullin’s wife’s looks. “I want to thank the family, because