Amanpour: Cory Booker, Alistair Burt, Yascha Mounk and Linda Villarosa

U.S. Presidential candidate Cory Booker joins Christiane Amanpour in New York to talk climate, his childhood and the 2020 presidential race. Former Conservative Party MP Alistair Burt discusses the recent Brexit developments and Yascha Mounk, Associate Professor at Johns Hopkins University, reflects on their wider implications for British democracy. Our Walter Isaacson is joined by Linda Villarosa, Contributing Writer at the New York Times Magazine, to talk about the Times' 1619 Project.