Follow the money my friends... follow the money never fails...
In boxing, big punchers seek knockouts. In government, the same principle applies: The wealthiest corporations and special interest groups usually pepper politicians with overwhelming amounts of money in hope of influencing the political process.
Here you'll find total contributions for the 100 biggest givers in federal-level politics since 1989 -- information that exists nowhere else.
Data courtesy Center for Responsive Politics
Click here for the Top Ten and more