Roger Stone: Rudy Giuliani is the 'tough guy' President Trump needs on legal team

Roger Stone, former Trump political adviser, says he has not heard from "credible sources" that the President is "frustrated" by Rudy Giuliani’s comments. Stone also denied previous claims that he's met with WikiLeaks founder Julian Assange, and adds that the Robert Mueller questions are a “perjury trap.” Watch Stone's full interview with MSNBC's Andrea Mitchell.