US President Donald Trump speaks during a swearing in ceremony for new Homeland Security Secretary Markwayne Mullin in the Oval Office of the White House in Washington, DC, on March 24, 2026. The US Senate on Monday confirmed Mullin as the new chief of the Department of Homeland Security (DHS), the agency reeling from a partial government shutdown as it works to enforce President Donald Trump's immigration crackdown. (Photo by Jim WATSON / AFP via Getty Images)