US Senate Confirms Mullin as Next Homeland Security Boss

WASHINGTON — The U.S. Senate voted Monday evening to confirm Markwayne Mullin to lead the Department of Homeland Security, which is responsible for carrying out President Donald Trump’s mass deportation agenda.

Sen. Markwayne Mullin, R-Okla., speaks to reporters at the U.S. Capitol on March 3, 2026. (Photo by Ashley Murray/States Newsroom)

The 54-45 vote means that Mullin, a Republican senator from Oklahoma, will take over the department amid a five-week shutdown. He will replace outgoing Secretary Kristi Noem, whom the president reassigned to another role in the administration.

Mullin voted for himself. Democratic Sens. John Fetterman of Pennsylvania and Martin Heinrich of New Mexico were the only Democrats to back Mullin’s confirmation.

Just before the Senate adjourned, Mullin submitted his resignation letter.

The department has been shut down since mid-February, while Democrats have called for restraints on federal immigration agents after officers killed two U.S. citizens in Minneapolis. On Jan. 7, Renee Good was shot and killed by an Immigration and Customs Enforcement agent, and on Jan. 24, Alex Pretti was pinned down and killed by Customs and Border Protection officers.

Senate Majority Leader John Thune, a Republican from South Dakota, said on the Senate floor before the vote Monday that Mullin will be entering DHS at a difficult time.

“It’s a tough assignment, made all the more challenging right now by Democrats having shut DHS down for five weeks,” Thune said. “We all know that Markwayne isn’t afraid of a challenge.”

Speaking to reporters early Monday, Trump said that Mullin is “gonna be fantastic” as DHS secretary.

As an enrolled member of the Cherokee Nation, Mullin will be the first Indigenous DHS secretary.

Shutdown effects

Though DHS is shuttered, ICE and CBP are still fully funded because the Republican-led Congress last year passed a separate $175 billion funding stream for immigration enforcement.

Trump over the weekend directed his administration to place ICE agents in several airports in an attempt to aid Transportation Security Administration agents, who are working without pay. ICE and TSA are both agencies within DHS.

Mullin does not have any experience on a committee that handles policy for Homeland Security and will be tasked with leading a department of 260,000 employees.

Some senators have raised concerns about Mullin’s temperament, citing a 2023 incident in which he physically challenged a witness before Congress. Mullin also expressed sympathy toward a man who attacked Sen. Rand Paul, breaking six of the Kentucky Republican’s ribs and damaging a lung.

Paul, who chairs the Senate Homeland Security and Governmental Affairs Committee, voted against advancing Mullin’s nomination to the Senate floor. Paul also voted against Mullin’s confirmation on Monday night.

The Senate advanced Mullin’s nomination in a 54-37 procedural vote Sunday. Two Democrats, Pennsylvania’s John Fetterman and New Mexico’s Martin Heinrich, joined all Republicans who voted Sunday. Paul did not vote on Sunday.

by Ariana Figueroa, Virginia Mercury

Virginia Mercury is part of States Newsroom, a nonprofit news network supported by grants and a coalition of donors as a 501c(3) public charity. Virginia Mercury maintains editorial independence. Contact Editor Samantha Willis for questions: info@virginiamercury.com.