Former New York mayor and now democratic presidential candidate Michael Bloomberg joins Christiane Amanpour in Madrid at the COP 25 climate summit. Political analyst and former chief speechwriter to Rudi Giuliani, John Avlon discusses the US presidential race. Dexter Filkins, staff writer at the New Yorker, and Rana Ayyub, global opinions writer at the Washington Post, tell Christiane about their recent collaboration investigating violence against the Muslim minority in India. And our Hari Sreenivasan talks to Christine Quinn, president & CEO of WIN, and Daniel Russo, principal of Bronx school PS 294, about the rise in child homelessness in America.To learn more about how CNN protects listener privacy, visit cnn.com/privacyLearn more about your ad choices. Visit podcastchoices.com/adchoices