A longtime Washington insider argues that former FBI Director James Comey’s letter to Congress, sent just before the presidential election in 2016 was a key determining factor in Trump’s win. Listen to Michael's conversation with attorney Lanny Davis, author of "The Unmaking of the President 2016: How FBI Director James Comey Cost Hillary Clinton the Presidency." Original air date 7 February 2018. The book was published on 6 February 2018.