President Trump challenges Secretary of State Tillerson to IQ test

President Trump responded to a report that Secretary of State Rex Tillerson called him a "moron" by telling Forbes, "I guess we'll have to compare IQ tests." The President also continued his attacks on GOP Senator Bob Corker on Twitter. Washington Post White House reporter David Nakamura joins CBSN to discuss what the feuds mean for the president's policy agendas.

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