Elon Musk has sparked controversy by warning that New York City's new Fire Department Commissioner, Lillian Bonsignore, lacks the necessary firefighting experience, predicting fatal consequences. Bonsignore, a 31-year EMS veteran, is defended by Mayor-elect Mamdani, who highlights EMS's growing role and the Commissioner's managerial focus. Tech figures like David Sacks have echoed Musk's concerns.