01/08/2013 11:54 am ET Updated Mar 10, 2013

Behind The Curtain: The 'hell No' Caucus - POLITICO.com

Freshman Rep. Tom Cotton, a veteran of two wars and with a pair of Harvard degrees, got a pleasant surprise last year that helped him win a very competitive Republican primary -- and then a very easy general election. It was a FedEx envelope full of checks that he didn't ask for, from a group he hardly knew -- the Club for Growth.

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