The AFL-CIO is a federation of 56 unions, representing 10.5 million members. The federation has dedicated $53 million and 200,000 volunteers for a voter mobilization campaign this election season, its largest effort ever.
Member unions of the federation are expected to also spend a combined $200 million on the election.
The AFL-CIO also formed a Union Veterans Council in July to make the point that, while union members respect Republican presidential candidate and Arizona Sen. John McCain's military record, they oppose his policies.
Funders: Union members
Leadership: Karen Ackerman, Linda Chavez-Thompson, Arlene Holt Baker, Gerald W. McEntee, Michael Podhorzer (Deputy), Richard L. Trumka, John J. Sweeney. Read profiles of these leaders in the Secret Money Project's directory of key leaders of independent groups.
Will Evans is a reporter for the Center for Investigative Reporting, NPR's partner for the Secret Money Project.