A scathing DOJ report rebukes former FBI director Jim Comey for leaks about the Trump-Russia investigation. Scholar and author Stephen F. Cohen says that Comey and other intelligence officials weaponized their authority, and should be held to account.‬Guest: Stephen F. Cohen, professor emeritus at New York University and Princeton University. His latest book is "War with Russia: From Putin and Ukraine To Trump and Russiagate."‬