January 5, 2020: How the US-Iran crisis is being covered; Stelter says it is patriotic to question officials in wartime; Bari Weiss on New York's solidarity march against anti-Semitism

Plus, Sam Donaldson on "wag the dog" claims and David Frum on lessons learned from the Iraq war... Kim Ghattas, Jasmine El-Gamal, Jason Rezaian, Sam Donaldson, Katie Rogers, Bari Weiss, Paul Rieckhoff, Irin Carmon, Chloe Melas and David Frum join Brian Stelter.

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