Zohran Mamdani has built his career on outrage, not outcomes. The 33-year-old Queens assemblyman, now the leading candidate for mayor of New York City, has mastered the art of moralizing without ever proving that his ideas work. His campaign…

Zohran Mamdani has built his career on outrage, not outcomes. The 33-year-old Queens assemblyman, now the leading candidate for mayor of New York City, has mastered the art of moralizing without ever proving that his ideas work. His campaign…