WASHINGTON D.C March 5, 2026 – In a swift Cabinet shakeup, President Donald Trump announced on Thursday the nomination of Oklahoma Republican Senator Markwayne Mullin to serve as Secretary of the Department of Homeland Security (DHS), replacing Kristi Noem who was fired amid mounting bipartisan criticism over her handling of immigration enforcement operations.
Noem’s departure marks her as the first Cabinet secretary to be ousted in Trump’s second term. The decision follows intense scrutiny stemming from fatal shootings in Minneapolis involving federal immigration agents. In January 2026, two U.S. citizens, Alex Pretti and Renee Good, were killed during protests against deportation policies. Noem’s characterization of the incidents—one as an “act of domestic terrorism”—drew backlash after on-the-ground reports contradicted her account, leading to calls for her resignation or impeachment from both Democrats and some Republicans. Trump initially defended Noem, praising her for maintaining the “strongest border in history,” but ultimately replaced her after congressional hearings highlighted failures in DHS leadership, including unlawful detentions and human rights concerns in ICE custody.
Trump stated that Noem would transition to a new role as “Special Envoy for The Shield of the Americas,” a security initiative focused on the Western Hemisphere. The firing reflects internal frustrations within the administration, with sources indicating Noem was seen as taking undue blame for operational mishaps.
Mullin, Oklahoma’s junior senator and a staunch Trump ally, is expected to align closely with the president’s aggressive immigration agenda. A first-term senator and former undefeated mixed martial arts (MMA) fighter with a 5-0 record, Mullin brings a unique background to the role, including his experience as a businessman and his tough stance on border security.
Speaking to reporters moments after the announcement, Mullin expressed enthusiasm for the position. “We’re going to try to earn everybody’s vote,” he said, referring to the upcoming Senate confirmation process. “Once I make that transition, my focus is to keep the Homeland secure. That’s going to be my focus—and we’re super excited about this opportunity.” The comments were captured in a Fox News clip shared widely on social media.
Mullin will serve as acting secretary starting March 31, pending Senate confirmation. Oklahoma Governor Kevin Stitt congratulated Mullin on the nomination, highlighting his commitment to national security. Reactions on social media were mixed, with supporters praising Mullin’s tough persona and critics expressing concerns over his views on amnesty and immigration.
This nomination comes amid ongoing tensions over U.S. immigration policy, including a reported active conflict with Iran, which could influence DHS priorities in counterterrorism and border management. As Mullin steps into the role, all eyes will be on how he addresses the controversies that led to Noem’s exit while advancing Trump’s “America First” agenda.
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