Markwayne Mullin Nominated to Lead Department of Homeland Security
Oklahoma Senator Markwayne Mullin has been selected by President Donald Trump to head the Department of Homeland Security (DHS), a pivotal agency within the U.S. Federal government. He will succeed Kristi Noem, who was dismissed by the president on Thursday. The announcement was made on March 5, 2026, according to NPR and POLITICO.
A Key Role in Immigration Policy
The DHS plays a central role in implementing President Trump’s stringent immigration policies, which have faced significant opposition from civil rights organizations, local governments, and legal challenges alleging “unconstitutional” practices and human rights violations. BBC News reports that Noem was the public face of the Trump administration’s immigration crackdown.
Background of Senator Mullin
Mullin, a senator since 2023, is considered a staunch supporter of President Trump and the “Make America Great Again” (MAGA) movement. He has consistently aligned with the White House and served as a liaison between the Executive Branch and Congress. In a statement, Mullin expressed his surprise at the nomination and his willingness to serve the American people, as reported by NPR.
Originally from Tulsa and a member of the Cherokee Nation, Mullin transitioned from the family plumbing business to ventures in restaurants and real estate before entering politics.
Political Career and Notable Incidents
Mullin began his national political career in 2013 with his election to the House of Representatives, where he served for a decade before being elected to the Senate.
During the January 6, 2021, attack on the Capitol, Mullin stated he was among the first members of the House to assist Capitol Police in responding to the breach, helping to construct barricades.
In 2021, Mullin sparked controversy with an attempt to travel to Afghanistan following the withdrawal of U.S. Troops, aiming to “rescue” American citizens. His effort was blocked by the Pentagon and U.S. Diplomats in Tajikistan.
He was also subject to an investigation by the House ethics committee regarding his continued involvement in family businesses and receipt of outside compensation exceeding the permissible limit for legislators.
Beyond Politics
Mullin is known for his passion for mixed martial arts and wrestling, holding a place in Oklahoma’s National Wrestling Hall of Fame. He has recounted instances of physical altercations, including an incident at a Republican meeting where he reportedly subdued a man verbally harassing Congresswoman Lauren Boebert, according to NPR.
He also supported efforts to contest the results of the 2020 presidential election, solidifying his position within Trump’s inner circle.
Looking Ahead
Pending Senate confirmation, Mullin will oversee one of the most critical agencies responsible for internal security and immigration policy in the United States. KSBW reports that Mullin can act as acting secretary until then.