Bauer: Dershowitz is 'dead wrong' in his defense of the President

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Alan Dershowitz, who will be making the constitutional defense for President Trump in the Senate impeachment trial, argues that whether or not Trump abused power is irrelevant, because that doesn't rise to the level of an impeachable offense. Bob Bauer, who served as White House Counsel under President Obama, says that that argument is 'dead wrong.'