Will Republicans be able to repeal and replace Obamacare? How did Republican Senators get themselves into a fight with Jimmy Kimmel?
Donald Trump called for a global nationalism at the United Nations. Does his vision of cooperation based in self-interest make sense? What does it mean for hot spots like Iran and North Korea?
Plus, Harvard law professor Cass Sunstein teaches us about impeachment, and Katy Tur of NBC News joins us to discuss her bestselling memoir covering the Trump campaign.