What if thinking about race and class in this country isn't enough? What if we considered the distribution of political power in terms of caste instead? On today's show, Isabel Wilkerson, Pulitzer Prize-winning journalist and the author of The Warmth of Other Suns and her latest, Caste: The Origins of Our Discontents (Random House, 2020), argues that beyond race and class, America is structured in a caste hierarchy and how that shapes individuals' lives.