Zohran Mamdani was sworn in as New York City's 112th mayor, marking several historic firsts including being the first Muslim, South Asian, and African-born leader. He took his oath privately at a decommissioned subway station using two Qurans, and later in a public ceremony administered by Senator Bernie Sanders. Mamdani, a democratic socialist, emphasized a commitment to addressing the city's affordability crisis and governing for all New Yorkers, including those who did not vote for him.