<http://opensecrets.org/orgs/index.asp>
Blue Chip Investors Top Donor Dossiers
Here you'll find total contributions for the 100 biggest givers in American politics since 1989--information that exists nowhere else. Read the full report.
Top 10 donors:
American Fedn of State, County & Municipal Employees $36,694,599
National Assn of Realtors $26,955,118
Assn of Trial Lawyers of America $25,300,041
National Education Assn $25,180,941
Intl Brotherhood of Electrical Workers $23,617,005
Service Employees International Union $23,354,475
Communications Workers of America $22,937,924
Laborers Union $22,812,207
Carpenters & Joiners Union $22,606,447
Teamsters Union $22,550,008