New York has entered a dramatic new political chapter as Zohran Mamdani was sworn in as the city’s new mayor, declaring that the entire United States and the world is watching whether his left-leaning vision of governance can succeed. Speaking after taking the oath of office at City Hall, Mamdani vowed that his administration would “set an example for the world,” positioning the city as a testing ground for left-wing governance at a time of growing political polarization across the country. Watch