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Republicans vs. Grover Norquist

Meet Grover Norquist's conservative archenemy. Frank Gaffney has claimed for a decade that Norquist is tied to the Muslim Brotherhood. Now, Michele Bachmann has reinvigorated his crusade to take down the man behind the no-new-taxes pledge. MSNBC’s Lawrence O’Donnell gets a report from The Huffington Post's Amanda Terkel.