Lawrence: No one has left the closed door meetings mad at Biden or Klain

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Evan Osnos, author of “Joe Biden: The Life, the Run and What Matters Now,” joins Lawrence O’Donnell to discuss Biden’s pick of Ron Klain as his White House Chief of Staff. Osnos also says despite differences on the Democratic primary debate stage, Joe Biden consciously acted to ensure should he win the nomination, he was not “left with a party that was too weak to take on his opponent.”