Why would Parnas agree to an interview? 'He's worried,' says Maddow to Lawrence

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Rachel Maddow sat down with Lev Parnas for an exclusive interview on MSNBC. In breaking down the interview with Lawrence O’Donnell, Rachel explains that she feels Parnas is coming forward because "he's worried" about going to jail and he wants to make it clear "that he wants to cooperate, he wants to testify with congressional investigators in the impeachment investigation."