Labor history of the United States democracy on the previously authoritarian union hierarchies. However, in the 1958 elections, taking place during a sharp economic recession, the unions fought back especially against state Right to Work laws and defeated many conservative Republicans. The Teamsters union was expelled from the AFL for its notorious corruption under president Dave Beck. Its troubles gained national attention from highly visible Senate hearings. The target was Jimmy Hoffa (1913–1975), who replaced Beck and held total power until he was imprisoned in 1964. The UAW under Reuther played a major role in funding and supporting the Civil Rights Movement in the 1950s and
Jimmy Hoffa caused by the 1975 disappearance of her husband, because her health had declined steadily since then. She is entombed in Michigan. In 1989, Kenneth Walton, the head of the FBI's Detroit office, told "The Detroit News" that he knew what happened to Hoffa. "I'm comfortable I know who did it, but it's never going to be prosecuted because ... we would have to divulge informants, confidential sources." In 2001, the FBI matched DNA from Hoffa's hair—taken from a brush—with a strand of hair found in a 1975 Mercury Marquis Brougham driven by longtime friend Charles "Chuckie" O'Brien on July 30,