Zohran Mamdani was inaugurated as New York Mayor, vowing to govern expansively and audaciously as a democratic socialist. He pledged to replace individualism with collectivism and ensure the wealthy share power, stating the city belongs to all, not just the rich. U.S. Senator Bernie Sanders, who administered the oath, supported Mamdani's goals, including raising taxes on the wealthy, calling them 'right and decent' rather than radical.