Republican Senate candidate Markwayne Mullin got into a physical altercation with Teamsters President Sean O'Brien during a Senate hearing on November 15, 2023.


The altercation occurred after O'Brien accused Mullin of being "a corporate puppet" and a "hater of working people

– Mullin responded by shoving O'Brien, who then threw a punch at Mullin. The two men were separated by security guards.