"The Investigation" offers an early preview of Amy Robach's exclusive interview with Hunter Biden. Now, two of the producers who booked and produced the highly sought after interview, Victoria Thompson and Nadine Shubailat, sit down with "Investigation" co-host Chris Vlasto and discuss the critical points from the interview, including Hunter Biden's adamant response he did nothing improper when he joined Burisma's board, but saying "I'm a human...did I make a mistake? Well, maybe in the grand scheme of things, yeah." Then, our co-hosts break down the latest legal and political questions surrounding the impeachment inquiry with two ABC News contributors: former Congresswoman Barbara Comstock and former Obama White House lawyer and law professor Kate Shaw.