Mar 18, 2026; Washington, DC, USA; Markwayne Mullin greets one-time adversary now friend Sean O'Brien, the current General President of the International Brotherhood of Teamsters, right, before he testified in front of the Senate Homeland Security and Governmental Affairs Committee during his confirmation hearing to become the Secretary of Homeland Security in Washington DC, on March 18, 2026.; Mandatory Credit: Jack Gruber-USA TODAY via Imagn Images