Senate Brawl: GOP Senator Challenges Union Boss to Fistfight LIVE – Sparks Fly!

GOP Sen. Markwayne Mullin challenged Teamsters president Sean O'Brien to a physical fight during a Senate hearing on labor unions.

The confrontation stemmed from a heated exchange in March over Mullin's business background and O'Brien's union salary.

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Mullin referred to O'Brien's tweets calling him a "greedy CEO," a "clown," and a "fraud."

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Holding printed versions of O'Brien's tweets, Mullin invited him to settle the dispute on the Senate floor.

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O'Brien agreed, prompting Mullin to stand up, but Chairman Bernie Sanders intervened, reminding Mullin of his role as a U.S. senator.

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Mullin, a former undefeated MMA fighter, and O'Brien continued verbal sparring, agreeing to meet for coffee at one point.

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The situation escalated with insults, leading to Sanders banging the gavel to restore order.

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Mullin later told reporters the confrontation wasn't personal, accepting O'Brien's challenge without harboring hard feelings.

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