In this bonus episode, listen to Ari Melber's special report on the Federal Office that could pose a bigger threat to Trump's interests than even the Mueller probe. Plus, hear from two people who used to work with Trump, give their insight into his personality and business acumen. Trump's "Art of the Deal" co-author, Tony Schwartz, tells Ari Melber: "As a Dealmaker, he is really one of the worst I've ever come across".