Are Those Rich Fat Cats Who Finance Elections Conservative?
In the following chart, the little donkeys and elephants indicate the partisan slant of the contributions of the group. The little fence icon means the group was nearly evenly split between the parties.
These are the top donors, with the figures aggregated for 1989-2010.
(Clicking on the graphic will bring up a larger easy-to-read copy.)
You can follow the Open Secrets link to see the entire list.