Who's Paying for All Those Political Ads?
One of the Tea Party organizations, the Tea Party Patriots, said Tuesday it has just received $1 million from an anonymous donor to help get out the vote.
All told, spending on TV ads for the midterm elections is expected to total $3 billion.
CBS News chief investigative correspondent Armen Keteyian reports that because of a Supreme Court ruling earlier this year, you may never who's behind most of those ads.