The Senate on Monday confirmed Sen. Markwayne Mullin as secretary of the Department of Homeland Security, replacing Kristi Noem atop the department.

The Senate on Monday confirmed Sen. Markwayne Mullin as secretary of the Department of Homeland Security, replacing Kristi Noem atop the department.

President Donald Trump tapped Sen. Markwayne Mullin, R-Okla., earlier this month to replace embattled DHS Secretary Kristi Noem.