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)

WASHINGTON, DC - MARCH 24: U.S. President Donald Trump speaks during a ceremony for newly sworn in U.S. Secretary of the Department of Homeland Security Markwayne Mullin in the Oval Office at the White House on March 24, 2026 in Washington, DC. Mullin takes the helm of DHS during a challenging time as it has been partially shut down since February 14 while lawmakers negotiate reforms for Immigration and Customs Enforcement. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - MARCH 24: U.S. President Donald Trump speaks during a ceremony for newly sworn in U.S. Secretary of the Department of Homeland Security Markwayne Mullin in the Oval Office at the White House on March 24, 2026 in Washington, DC. Mullin takes the helm of DHS during a challenging time as it has been partially shut down since February 14 while lawmakers negotiate reforms for Immigration and Customs Enforcement. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - MARCH 24: U.S. President Donald Trump speaks during a ceremony for newly sworn in U.S. Secretary of the Department of Homeland Security Markwayne Mullin in the Oval Office at the White House on March 24, 2026 in Washington, DC. Mullin takes the helm of DHS during a challenging time as it has been partially shut down since February 14 while lawmakers negotiate reforms for Immigration and Customs Enforcement. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - MARCH 24: U.S. President Donald Trump (L) shakes hands with newly sworn in Department of Homeland Security Secretary Markwayne Mullin during a ceremony in the Oval Office at the White House on March 24, 2026 in Washington, DC. Mullin takes the helm of DHS during a challenging time as it has been partially shut down since February 14 while lawmakers negotiate reforms for Immigration and Customs Enforcement. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - MARCH 24: U.S. Secretary of War Pete Hegseth looks on as U.S. President Donald Trump speaks before former U.S. Sen. Markwayne Mullin (R-OK) is sworn in as the next secretary of the Department of Homeland Security in the Oval Office at the White House on March 24, 2026 in Washington, DC. Mullin takes the helm of DHS during a challenging time as it has been partially shut down since February 14 while lawmakers negotiate reforms for Immigration and Customs Enforcement. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - MARCH 24: Former U.S. Sen. Markwayne Mullin (R-OK) and his wife Christie Mullin look on before he is sworn in as the next secretary of the Department of Homeland Security in the Oval Office at the White House on March 24, 2026 in Washington, DC. Mullin takes the helm of DHS during a challenging time as it has been partially shut down since February 14 while lawmakers negotiate reforms for Immigration and Customs Enforcement. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - MARCH 24: U.S. President Donald Trump speaks before former U.S. Sen. Markwayne Mullin (R-OK) is sworn in as the next secretary of the Department of Homeland Security in the Oval Office at the White House on March 24, 2026 in Washington, DC. Mullin takes the helm of DHS during a challenging time as it has been partially shut down since February 14 while lawmakers negotiate reforms for Immigration and Customs Enforcement. (Photo by Chip Somodevilla/Getty Images)