It turns out that super PACs, which can accept unlimited cash contributions as long as they don't coordinate with political campaigns, often send checks to the same companies that the candidates are, creating a circle of money that's largely hidden from public view.
Firms with names like Target Point Consulting, Financial Innovations, Election Connections, and Strategic Media Services have mushroomed up in the 2012 presidential campaign.
Target Point Consulting does survey research for Mitt Romney's campaign but also sends out direct mail for the pro-Romney super PAC Restore Our Future.
Some of the companies largely exist only on paper. Heads of super PACSs can also direct some of the big bucks to their own firms. And it's all perfectly legal.
- Kim Barker, ProPublica reporter who reported on super PACS
This segment aired on April 9, 2012.