Trump Picks Markwayne Mullin After Noem Exit

Advanced | March 19, 2026

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A Sudden Leadership Change at Homeland Security

President Donald Trump announced on March 5, 2026 that Homeland Security Secretary Kristi Noem would leave her post at the end of the month and that Senator Markwayne Mullin of Oklahoma would be his choice to replace her (Just the News). The move quickly drew attention because the Department of Homeland Security, or DHS, is one of the most politically sensitive agencies in Washington. The Noem DHS replacement story quickly became a major political talking point.

Why Kristi Noem Was Pushed Out

According to Reuters, Noem’s exit followed months of controversy. Reuters reported that lawmakers had raised questions about a $220 million advertising contract tied to a border security campaign that featured Noem heavily, and the department was also under pressure after federal officers fatally shot two U.S. citizens in Minneapolis during a January operation (Reuters). In politics, that is the kind of combination that can turn into a major headache fast.

Who Is Markwayne Mullin?

Mullin is a Republican senator from Oklahoma and a close Trump ally. AP News reported that after the announcement, Mullin said he would get DHS “focused on protecting the homeland.” Reuters also noted that he shares Trump’s hardline views on immigration and is expected to support the administration’s aggressive enforcement agenda (Reuters).

A Tough Job Waiting for Him

This is not exactly a smooth handoff. AP News reported that DHS is dealing with funding fights, criticism over enforcement tactics, and pressure related to FEMA and disaster-response issues. In other words, Mullin would be stepping into a department that already has several fires burning at once (AP News).

Senate Questions Still Matter

Getting nominated is one thing. Getting confirmed is another. Reuters reported on March 18 that Senator Rand Paul said he would oppose Mullin’s nomination because of concerns about Mullin’s temperament and past inflammatory remarks (Reuters). That means the confirmation process could become a story of its own.

Why the Noem DHS Replacement Matters

This story matters because leadership changes at DHS can directly affect immigration policy, border enforcement, disaster response, and national security. The Noem DHS replacement story is not just about one job change. It is also about what kind of direction the Trump administration wants for one of its most powerful departments. And in Washington, when leadership changes at the top, policy changes are often not far behind.

Vocabulary

Nominee (noun) – a person chosen for a position, but not yet officially approved.
Example: “Mullin became Trump’s nominee for homeland security secretary.”
Controversy (noun) – public disagreement or criticism.
Example: “Noem’s departure came after months of controversy.”
Enforcement (noun) – the act of making sure laws or rules are followed.
Example: “Immigration enforcement has become a major political issue.”
Temperament (noun) – a person’s usual emotional behavior or attitude.
Example: “Some senators questioned Mullin’s temperament.”
Confirmation (noun) – official approval for a government position.
Example: “His confirmation may face resistance in the Senate.”
Hardline (adjective) – very strict and not willing to compromise.
Example: “Mullin is seen as hardline on immigration.”
Agency (noun) – a government department or organization.
Example: “DHS is one of the largest federal agencies.”
Backlash (noun) – a strong negative reaction from the public or officials.
Example: “The department faced backlash after the Minneapolis operation.”
Procurement (noun) – the process of obtaining goods or services officially.
Example: “The ad contract raised questions about procurement rules.”
Handoff (noun) – the transfer of responsibility from one person to another.
Example: “This leadership handoff may not be a simple one.”

Discussion Questions (About the Article)

When did Trump announce that Kristi Noem would leave DHS?
What controversies were linked to Noem’s exit?
How did Mullin describe his goal for DHS?
Why might Mullin’s confirmation process be difficult?
What major problems is DHS dealing with right now?

Discussion Questions (About the Topic)

How much should a leader’s personal style matter in a confirmation process?
Do leadership changes usually lead to real policy changes? Why or why not?
What makes immigration such a politically sensitive issue in the United States?
Should government advertising campaigns be more strictly controlled?
What qualities are most important in a homeland security leader?

Related Idiom

“Take the heat” – to face criticism, blame, or pressure.

Example: “After several controversies, Kristi Noem had to take the heat, and now Markwayne Mullin may face a tough confirmation battle.”

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This article was inspired by: Just the News, Reuters, Reuters, Reuters, AP News, AP News