Jimmy Hoffa He accused senior Nixon Administration figures, including Attorney General John N. Mitchell and White House Special Counsel Charles Colson, of depriving him of his rights by imposing this condition; Mitchell and Colson both denied this. It was probably imposed upon Hoffa as the result of requests from the Teamsters' leadership, although Fitzsimmons also denied this. Hoffa sued to invalidate the non-participation restriction in order to reassert his power over the Teamsters. John Dean, former White House counsel to President Nixon, was among those called upon for depositions in 1974 court proceedings. Dean, who had become famous as a government witness
Jimmy Hoffa influence. In 1975, Hoffa was working on an autobiography titled "Hoffa: The Real Story", which was published a few months after his disappearance. He had earlier published a book titled "The Trials of Jimmy Hoffa" (1970). Hoffa disappeared on July 30, 1975, from the parking lot of Red Fox restaurant in Bloomfield Township, a suburb of Detroit. He had told others he was going there to meet with two Mafia leaders: Anthony Giacalone and Anthony Provenzano. Provenzano was also a Teamster leader in New Jersey and had earlier been close to Hoffa. Provenzano was a national vice-president with IBT from