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    Cuomo, Rep. Collins spar over global warming

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Cuomo, Rep. Collins spar over global warming

CNN's Chris Cuomo questions Rep. Chris Collins about his recent trip to the Arctic Circle in which he met with scientists about global warming.

Cuomo, Rep. Collins spar over global warming

CNN's Chris Cuomo questions Rep. Chris Collins about his recent trip to the Arctic Circle in which he met with scientists about global warming.