May 2, 2021: How 'political sectarianism' explains America's divides; the Giuliani scoop that wasn't; Bill Carter on late night changes

Plus... One-on-one with New York Times Opinion editor Kathleen Kingsbury; Daniel Dale's data about Biden's first 100 days; the shifting tone of Covid coverage; and more. Eli J. Finkel, Daniel Dale, Nicole Hemmer, Oliver Darcy, Zeynep Tufekci, David Leonhardt, Kathleen Kingsbury and Bill Carter join Brian Stelter. To learn more about how CNN protects listener privacy, visit cnn.com/privacy