Fight Nearly Breaks Out in Senate Between GOP Senator and Union Boss

Tempers flare as Oklahoma senator challenges Teamsters leader Sean O'Brien to a fight, forcing Sen. Bernie Sanders to intervene.

Rep. Markwayne Mullin, (R-Okla.), speaks during a news conference on Capitol Hill on Sept. 16, 2020. Alex Brandon/AP Photo

Sen. Bernie Sanders (I-Vt.) played referee on Nov. 14 as emotions boiled over during a Senate committee hearing.

Sen. Markwayne Mullin (R-Okla.) challenged International Brotherhood of Teamsters (IBT) General President Sean O'Brien to a fight on Tuesday during a Senate Committee on Health, Education, Labor and Pensions hearing.