Watch live: Markwayne Mullin sworn in to lead DHS

The Hill
by The Hill Staff
March 24, 2026
2 min read

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The Bottom Line

President Trump will host a swearing-in ceremony for Sen. Markwayne Mullin, confirmed Monday as the new Department of Homeland Security secretary.

AI Summary

Markwayne Mullin, the Oklahoma Republican senator, is being sworn in Wednesday as Secretary of the Department of Homeland Security after his Senate confirmation Monday. Trump selected Mullin to replace Kristi Noem, whose tenure faced criticism over aggressive immigration enforcement tactics at DHS. Mullin's appointment signals the Trump administration's commitment to reshaping immigration enforcement leadership as it pursues tighter border security policies. The move also represents a significant career transition for Mullin, who moves from the Senate to lead one of the federal government's largest departments overseeing border security, immigration, and domestic emergencies.

What's Being Done

President Trump tapped Mullin to replace Kristi Noem; Mullin was confirmed Monday and will be sworn in Wednesday.

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