Hoffa, president of the International Brotherhood of Teamsters, was an influential US labor leader with alleged ties to the Mafia. He led with brawn and charisma and made toughness his policy—whether dealing with management or with rival unions. In 1964, he was convicted of jury tampering and fraud and sentenced to 13 years in jail, but President Richard Nixon commuted his sentence in 1971. Hoffa’s unexplained disappearance in 1975 prompted decades of speculation. What evidence surfaced in 2001? Discuss