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When it comes to Republican presidential candidates, Stephen Colbert doesn't back losers. So now that Rick Perry is fading fast, Colbert must throw his allegiance elsewhere, and who better to back than Herman Cain, the main beneficiary of Perry's declining poll numbers? That was the question on Colbert's mind tonight as he vetted Cain—plus his "9-9-9" tax plan and controversial remarks about an "electrified" border fence—on the Report.