Barack Obama
Teamsters, Unite-Here, Officers' Benevolent Association, Service Employee's International Union, Culinary Workers Union, and the United Food and Commercial Workers

Hillary Clinton
American Federation of State County and Municipal Employees, American Federation of Teachers, International Association of Machinists and Aerospace Workers, Allied Craftworkers, National Association of Letter Carriers, Painters, Bricklayers, and the United Transportation Union

John Edwards, who has since dropped out of the race, had been endorsed by the United Brotherhood of Carpenters and Joiners, United Mine Workers of America, United Steelworkers, and the Transport Workers Union.

Chris Dodd, who has since dropped out of the race, had been endorsed by the International Association of Fire Fighters.

The International Association of Machinists and Aerospace Workers has chosen to endorse one Democrat and one Republican for President. Their Republican endorsement went to Mike Huckabee.

Note: This list is not exhaustive. If you know of union endorsements for president not on this list, please contact the WW AFL- CIO Webmaster web4web@charter.net