Biden Calls Out GOP At Marathon Press Conference: 'What Are They For?'

Joining MSNBC's Lawrence O'Donnell, Washington Post columnist E.J. Dionne says President Biden's Wednesday press conference shows he's ready to draw political lines. “It really marked Joe Biden crossing the Rubicon. For too long he had so much faith that somehow this Republican Party in the Trump era could somehow behave like the a Republican Party of old.” » Subscribe to MSNBC: http://on.msnbc.com/SubscribeTomsnbc

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