Senator Markwayne Mullin has secured the votes he needed to advance to a final floor vote in the upper chamber, all thanks to Pennsylvania Senator John Fetterman.Fetterman differed from his colleagues in the Homeland Security and Government Affairs Committee Thursday, voting alongside Republicans to advance Mullin’s nomination to the Senate floor.The final committee tally was eight to seven. Meanwhile, Republican Senator Rand Paul joined Democrats in rejecting Mullin’s appointment.Fetterman has displayed a penchant for Trumpian politics since he moved to Washington, despite the fact that he ran on the progressive ticket. Since Fetterman entered office in 2023, he has sided with Republicans dozens of times, frequently leveraging his position to advance Donald Trump’s agenda. He also voted to confirm several of Trump’s Cabinet selections, including the last DHS chief, Kristi Noem, who was transferred to work in an unknown section of the government following a string of embarrassing scandals.“In January, I called on the president to fire Noem—and he did,” Fetterman wrote in an X post Thursday, addressing his vote. “I truly approached the confirmation of my colleague and friend, Senator Mullin, with an open-mind.”“We need a leader at DHS. We must reopen DHS,” he continued. “My AYE is rooted in a strong committed, constructive working relationship with Senator Mullin for our nation’s security.”Mullin has had his own tumultuous history in the Senate. In 2023, the Oklahoma Republican tried to brawl with International Brotherhood of Teamsters President Sean O’Brien. The hostile exchange was halted by Vermont Senator Bernie Sanders, but the fallout continued in the days after as Mullin refused to back down from the violence he started. Speaking with podcasters and broadcasters, Mullin invariably escalated the conflict, claiming he would “100 percent” bite and even duel the union boss.He’s also promoted violence against and attacked his colleagues, spurring accusations that Mullin suffers from severe anger issues.In a fiery exchange during his committee confirmation hearing Wednesday, Paul raked up Mullin’s reaction to a November 2017 incident in which the Kentucky lawmaker was attacked by his neighbor, leaving him with several broken ribs.Paul charged that Mullin “went on to brag” that he had “completely understood and approved of the assault,” prompting Mullin to “explain to the American public why they should trust a man with anger issues to set the proper example for [Immigration and Customs Enforcement] and border patrol agents.”Mullin’s response was that he was simply a blunt person and that he has had to “really pray about my attitude,” chalking his beef with Paul up to “political differences.”Mullin also stood by a previous comment that he “understood” where Paul’s neighbor was coming from.This story has been updated.