who is replacing noem

Kristi Noem is being replaced as U.S. Secretary of Homeland Security by Oklahoma Republican Senator Markwayne Mullin, whom President Donald Trump has announced as his nominee and named to take over the role effective March 31, 2026.

What’s happening

• President Trump has removed Kristi Noem from her position as Homeland Security Secretary after intense criticism over her handling of immigration enforcement and recent congressional hearings.

• He has announced Sen. Markwayne Mullin (R–Oklahoma) as her replacement to lead the Department of Homeland Security (DHS), with the transition set to take effect at the end of March 2026.

Who is Markwayne Mullin?

• Mullin is a Republican senator from Oklahoma and a strong supporter of Trump’s immigration and security agenda, often described in conservative media as a loyal “MAGA” ally.

• Before this nomination, he served in the Senate and built a reputation as a hard-line conservative on border security and law enforcement issues.

What happens to Noem?

• Noem is expected to leave DHS but transition into a new role as a Special Envoy for “The Shield of the Americas,” a Western Hemisphere security initiative Trump says he will roll out publicly.

• Her exit follows mounting bipartisan backlash over controversial immigration raids and fatal shootings in Minneapolis, as well as disputes about DHS spending and a high-cost media campaign contract.

Forum and trending discussion

• Political forums and social media are buzzing with debate about whether Mullin will double down on Trump’s existing hard-line policies or try to steady DHS after Noem’s turbulent tenure.

• Commenters critical of Trump see Noem’s ouster as a sign of internal chaos, while supporters frame Mullin as a tougher, more disciplined pick who can “fix” DHS and better execute Trump’s priorities.

Quick fact list

• Position being replaced: Secretary of Homeland Security.

• Outgoing official: Kristi Noem.

• Incoming nominee: Sen. Markwayne Mullin (R–Oklahoma).

• Effective date targeted: March 31, 2026.

• Noem’s next role: Special Envoy for “The Shield of the Americas.”