A Senate Committee on Health, Education, Labor, and Pensions hearing was disrupted by Sen. Markwayne Mullin (R-OK) when he brought attention to a previous tweet from Teamsters President Sean O’Brien and openly challenged him to a physical altercation right in the hearing room.

The ongoing exchange of verbal jabs between Mullin and O’Brien has spanned several months.

Earlier in the summer, the Republican senator had even proposed a charitable fight against O’Brien as a means to settle their differences.

Watch the interaction below:

Sen. Markwayne Mullin (R-OK) challenges Teamsters leader Sean O’Brien to a physical fight, standing up midway through a Senate HELP Committee hearing.

Chair Bernie Sanders (I-VT) repeatedly attempts to break them up: “You’re a United States senator.” pic.twitter.com/E4U624cDsS

— The Recount (@therecount) November 14, 2023

Written by B.C. Begley