Heilemann: Anti-Gingrich Campaigns Are Taking A Toll

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John Heilemann appeared on NOW with Alex Wagner from Iowa earlier today to confirm the efficacy of the anti-Gingrich ads from Mitt Romney and the rest of the GOP contenders. “Iowa is a momentum game,” he said. “You can get hot at the end, but it’s very hard once you’ve gotten hot, then gotten cold, to get hot again.” Watch the clip: