His decisive victory demonstrates just how much of a hold he still has on the Republican party, but his last remaining competitor is not bowing out just yet. How new sanctions on Russian diamonds could disrupt the supply chain (10:20). And is the Marvel franchise losing its superpower (17:16)?

Sign up for a free trial of Economist Podcasts+. If you’re already a subscriber to The Economist, you’ll have full access to all our shows as part of your subscription. For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.