Wealthy Americans throw their millions at key swing states

Americans for Prosperity, the Tea Party organization backed by the Koch brothers, is set to begin a $25-million (U.S.)advertising assault aimed at President Barack Obama, its largest effort to date.
The ad is the clear evidence of how the financial muscle of a few wealthy donors is having a powerful impact on the airwaves in key swing states as they use super PACs (political action committees) and other groups not officially linked to the campaigns to make multimillion-dollar ad purchases.