The Democratic Party is moving left. Its most dynamic leaders over the past few years have been Bernie Sanders, Alexandria Ocasio-Cortez, and Zohran Mamdani. Its most passionate activists are the young progressives who gave us the campus encampments after October 7. It’s only a slight exaggeration to say the Biden administration was a dozen aging moderates trying to manage a staff of 4,000 young progressives. These days, Democratic-primary voters are flocking to support whoever seems most furiou