President Trump reportedly 'hellbent' on identifying op-ed writer

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President Trump is reportedly “hellbent” on uncovering that anonymous senior administration official who is working for him, but against him. Stephanie Ruhle and Ali Velshi break down the latest on the New York Times piece causing fallout in the White House. Weighing in: Reuters White House Correspondent Jeff Mason and MSNBC National Security Analyst Ned Price.