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In an interview last night, Rick Perry criticized Mitt Romney for flip-flopping on the issues. Romney said that Perry has no idea what he's talking about. Then he added, 'But he does know what he's talking about.'

In an interview last night, Rick Perry criticized Mitt Romney for flip-flopping on the issues. Romney said that Perry has no idea what he's talking about. Then he added, 'But he does know what he's talking about.'