A few weeks ago, when President Pedro Castillo of Peru attempted an illegal power grab and ended up in jail, the response was unexpected: Thousands of protesters took to the streets to support him, and some died. Why does such a divisive leader have such fierce backing? And what does the upheaval in Peru tell us about the way the political winds are blowing in South America? Guest: Julie Turkewitz, the Andes bureau chief for The New York Times.