Sen. Harris: 'There cannot be a true acquittal if there's not been a fair trial'

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Sen. Kamala Harris says that President Trump cannot be considered truly acquitted unless the impeachment trial includes the evidence he's trying to exclude. She also argues that the Trump defense team's arguments that Trump's quid pro quo with Ukraine isn't impeachable ignores the fact that foreign entanglements were among the Framers' biggest concerns.