Bill Weld on Challenging President Trump in 2020

President Trump has a sky-high approval rating among Republicans, so who would think to challenge him in the 2020 Republican primaries? One lone voice is former Massachusetts Governor Bill Weld, who is the quintessential long shot and is worlds apart from Trump on practically everything. He speaks with Christiane from New York to discuss his quixotic bid, and the current state of his own party.