Up With Steve Kornacki 07/19/14

Political world reacts to Malaysia Airlines flight 17

Steve Kornacki, Keir Simmons, and Kristen Welker report on the victims of Malaysia Airlines flight 17, the status of the investigation, and possible additional sanctions on Russia. Rep. Charlie Dent, R-Pa., former Rep. Barney Frank, D-Mass., and Salon’s J

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