World leaders are gathering at the UN today. President Trump again threatened Iran, saying it faced a choice between making a deal to end the war or annihilation. There is one politician who is managing to maintain a working relationship with Trump, while also strongly disagreeing on policy - Zohran Mamdani, Democratic Socialist and first Muslim mayor of New York. Right after meeting with Trump in New York, he joined Christiane for an exclusive interview at City Hall. Also on today's show: Spanish Prime Minister Pedro Sanchez; musician Sara Bareilles, joined by the director of a new documentary about her, Josh Alexander  Learn more about your ad choices. Visit podcastchoices.com/adchoices