AFL-CIO
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The American Federation of Labor and Congress of Industrial Organizations (AFL-CIO) is a national trade union center that is the largest federation of unions in the United States. It is made up of 60 national and international unions, together representing more than 12 million active and retired workers. The AFL-CIO engages in substantial political spending and activism, typically in support of progressive and pro-labor policies.
AFL-CIO headquarters in Washington, DC
The International Brotherhood of Teamsters (IBT) is a labor union in the United States and Canada. Formed in 1903 by the merger of the Team Drivers International Union and the Teamsters National Union, the union now represents a diverse membership of blue- and white-collar workers in both the public and private sectors, totalling about 1.3 million members in 2015. The union was formerly called the International Brotherhood of Teamsters, Chauffeurs, Warehousemen and Helpers of America.
Informal portrait of (left to right) Cornelius P. Shea, John Miller, Fred Mader, and Tim Murphy sitting in a row in a courtroom in Chicago, Illinois, during a labor trial. Murphy was a politician, union organizer, and reputed gangster, and he was murdered in 1928.
Jimmy Hoffa served as President from 1957 to 1971.
A Teamsters gathering at the YearlyKos 2007 convention
Teamsters headquarters located beside Capitol Hill in Washington, DC