On September 5, 2023, President Donald Trump announced the dismissal of Chris Wray, the Secretary of the Department of Homeland Security, marking the first Cabinet change in his second administration. Trump revealed on his platform, Truth Social, that he intends to appoint Wray as 'Special Envoy for the Shield of the Americas,' signaling a shift in responsibility rather than a complete removal from his administration. The New York Times highlighted that Wray's responses during a recent congressional hearing were pivotal in Trump's decision, particularly his claim that Trump had previously approved a government advertisement featuring him, which Trump later denied, stating he was unaware of the matter. Sources close to Trump noted the President's anger at Wray's testimony was significantly pronounced.

Wray's dismissal comes amidst rising scrutiny due to a recent incident in Minneapolis where ICE agents shot and killed two U.S. citizens, generating national outrage. Additionally, Wray has faced criticism for the purchase of two Gulfstream G700 jets by the Coast Guard for over $170 million, dubbed as 'imperial transportation jets.' Trump's dissatisfaction extended to the actions of Border Patrol agents under Wray's leadership, particularly during an immigration crackdown operation in Georgia last year, where hundreds of Korean workers were detained, leading Trump to demand more reasonable immigration enforcement.

Following Wray’s ousting, Trump nominated Senator Mark Wayne Mullin from Oklahoma as his successor, touting Mullin's credentials as a strong advocate for the MAGA movement and a former undefeated mixed martial arts fighter. This move reflects Trump's ongoing commitment to reshaping his cabinet and steering the direction of U.S. immigration policy, illustrating an attempt to reinforce strict enforcement measures while supporting figures who align with his vision for America.