A congressional hearing devolved into an angry confrontation between a senator and a witness on Tuesday after Republican Sen. Markwayne Mullin of Oklahoma challenged Teamsters president Sean O’Brien to a fight. (Nov. 14)

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Republican Sen. Markwayne Mullin challenges labor leader Sean O’Brien to fight during hearing

Name: Republican Sen. Markwayne Mullin challenges labor leader Sean O'Brien to fight during hearing
Duration: 2 min 18 s
Description: A congressional hearing devolved into an angry confrontation between a senator and a witness on Tuesday after Republican Sen. Markwayne Mullin of Oklahoma challenged Teamsters president Sean O’Brien to a fight. (Nov. 14)

A congressional hearing devolved into an angry confrontation between a senator and a witness on Tuesday after Republican Sen. Markwayne Mullin of Oklahoma challenged Teamsters president Sean O’Brien to a fight. (Nov. 14)