Union political campaign contributors

1990-2010

Democrat- Republicans

Ame Fed.of State,County Municipal Employees $40,281,900- - $547,700

Intel Brotherhood of Electrical Workers 29,705,600- 679,000

National Education Association 27,679,300- 2,005,200

Service Employees International Union 26,368,470- 98,700

Communication Workers of America 26,305,500- 125,300

Service Employees International Union 26,252,000- 1,086,200

Laborers Union 25,734,000- 2,138,000

American Federation of Teachers 25,682,800- 200,000

United Auto Workers 25,082,200- 182,700

Teamsters Union 24,926,400- 1,822,000

Carpenters and Joiners Union 24,094,100- 2,658,000

Machinists & Aerospace Workers Union 23,875,600- 226,300

United Food and Commercial Workers Union 23,182,000- 334,200

AFL-CIO 17,124,300- 713,500

Sheet Metal Workers Union 16,347,200- 342,800

Plumbers & Pipefitters Union 14,790,000- 818,500

Operating Engineers Union 13,840,000- 2,309,500

Airline Pilots Association 12,806,600- 2,398,300

International Association of Firefighters 12,421,700- 2,685,400

United Transportation Workers 11,807,000- 1,459,300

Ironworkers Union 11,638,900- 936,000

American Postal Workers Union 11,633,100- 544,300

Nat'l Active & Retired Fed. Employees Association 8,135,400- 2,294,600

Seafarers International Union 6,726,800- 1,281,300