The news of his leave of absence comes after the union recently reached agreements with General Motors and the Ford Motor Company following a strike that lasted more than a month. The U.A.W. is one of the largest unions in the United States, with more than 400,000 active members.
Federal officials have been investigating the union and its managers for some time. In July 2017, Alphons Iacobelli, the former head of labor relations at Fiat Chrysler Automobiles, was indicted on conspiracy and other charges by a federal grand jury.
According to the indictment, Mr. Iacobelli used money from a union account to pay for a $350,000 Ferrari sports car, two gold Montblanc pens and a new kitchen and swimming pool at his personal residence. Federal investigators said he also allowed $1.2 million that was meant to pay for a training center to be diverted to a U.A.W. official and his wife.
He pleaded guilty in August 2018 to violating federal labor law and was sentenced to five and a half years in prison, The Free Press reported. He said at the time that he would cooperate with federal investigators.
More recently, in April, Norwood Jewell, a former U.A.W. vice president, pleaded guilty to breaking federal laws, The Free Press reported. He was accused of spending lavishly on $7,000 steakhouse dinners, cigar and wine parties valued at $30,000 and stays at golf resorts.