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U.S. President Barack Obama speaks at a campaign rally for Democratic challenger for Wisconsin Governor Mary Burke at North Devision High School on October 28, 2014 in Milwaukee, Wisconsin.
U.S. President Barack Obama speaks at a campaign rally for Democratic challenger for Wisconsin Governor Mary Burke at North Devision High School on October 28, 2014 in Milwaukee, Wisconsin.

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    The President's global warming fight

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The President's global warming fight

John King, Nia-Malika Henderson and Robert Costa look at comments by the President about global warming and how he plans to combat it.

The President's global warming fight

John King, Nia-Malika Henderson and Robert Costa look at comments by the President about global warming and how he plans to combat it.