Report: Nonprofits Spent More Than Super PACs in 2010 Election

Although super PACs have received most of the attention when it comes to outside spending during this election cycle, an investigation released Monday by the Center for Public Integrity and the Center for Responsive Politics shows that "social welfare" nonprofit groups spent $3 for every $2 super PACs spent in 2010.

The report noted that although super PACs must release their donors, the nonprofit groups as defined by section 501(c)(4) of the U.S. tax code rarely have to disclose where their money is coming from.