WASHINGTON, DC - MARCH 19: Senate Homeland Security and Governmental Affairs Committee member Sen. James Lankford (R-OK) prepares to vote to advance Sen. Markwayne Mullin (R-OK) to be Secretary of the Department of Homeland Security during a markup hearing in the Dirksen Senate Office Building on Capitol Hill on March 19, 2026 in Washington, DC. Committee Chairman Rand Paul (R-KY) announced that he does not support President Donald Trump's appointment of Mullin and voted against advancing his nomination. (Photo by Chip Somodevilla/Getty Images)