Mexican president-elect Andrés Manuel López Obrador won the race in part by vowing to stand up to President Trump. Andrew Selee, president of the Migration Policy Institute, joins us to talk about the strained U.S.-Mexico relationship – and about what it will take for the two countries to find common ground. Selee’s new book is called“Vanishing Frontiers: The Forces Driving Mexico and the United States Together”(PublicAffairs).