The following lists show the All-Time Top Donors, and the Top Individual Contributors in the 2010 election cycle and the percentage given to Democrats and Republicans. The links on the headings will lead to more information.
All-Time Top Donors:
# 1. ActBlue - 99% Dems; 0% Rep
#2. AT&T - 43% Dem; 55% Rep
#3. AFSCME - 92% Dem, 1% Rep
#4. Nat. Assoc. Of Realtors - 45% Dem; 47% Rep
#5 NEA - 74% Dem; 5% Rep
#6. Goldman Sachs - 57% Dem; 39% Rep
#7. Service Emp. Intl - 75% Dem; 2% Rep
#8. American Assn for Justice - 88% Dem; 8% Rep
#9, IBEW - 96% Dem; 2% Rep
#10. American Fedn of Teachers - 87% Dem; 0% Rep.
Top Individual Contributors (2010 Election):
#1. Stephen Bing - 100% Dem; 0% Rep
#2. Haim & Cheryl Saban - 100% Dem; 0% Rep
#3. Fred Eychaner - 100% Dem; 0% Rep
#4. Steve & Michele Kirsch - 100% Dem; 0% Rep
#5. Bernard & Irene Schwartz - 100% Dem; 0% Rep
#6 Jon S & Joanne D Corzine - 98% Dem; 0% Rep
#7. Melvin & Brenda J. Simon - 100% Dem; 0% Rep
#8. Peter G & Georgia K Angelos - 99% Dem; 0% Rep
#9. John M. O'Quinn - 100% Dem; 0% Rep
#10. Roland E. & Dawn Arnall - 34% Dem; 66% Rep
Funny, Koch doesn't appear until #54, under a lot of heavy weight Democratic donors...though the Left would have you believe that all political evil originate from Koch Industries.