Markwayne Mullin confirmed as the next secretary of Homeland Security

Sen. Markwayne Mullin, R-Okla., seen here at his confirmation hearing on March 18, was confirmed to run the Department of Homeland Security.

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.

(Image credit: Manuel Balce Ceneta)