A new report on corporate campaign donations follows the money from 280 Fortune 500 firms and the tax breaks those companies have enjoyed in recent years. And it leads to “the intersection of corporate campaign contributions to members of Congress and the absence of congressional action to close corporate tax loopholes and raise additional revenue from corporate taxes.”

“Loopholes for Sale: Campaign Contributions by Corporate Tax Dodgers,” by Citizens for Tax Justice and U.S. PIRG, finds that:

• 280 profitable Fortune 500 companies collectively received $223 billion in tax breaks between 2008 and 2010 while contributing $216 million to congressional candidates over the past four election cycles.
• The 30 most aggressive tax dodging corporations—dubbed the “Dirty Thirty” in an earlier report”—collectively paid a negative tax rate between 2008 and 2010 while spending $41 million on congressional campaign contributions.

Click here for the full “Loopholes for Sale” report.