11/05/2012 03:06 pm ET Updated Jan 05, 2013

Koch Brothers Linked To Secret Money Funding Massive GOP Grassroots Push

There's so much secret money in conservative politics that even volunteers are getting paid -- and paid well.

Grassroots activists who used to knock on doors and make phone calls for free are the latest beneficiaries of the historic spending spree to defeat President Barack Obama and elect GOP lawmakers.

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