New York City Mayor Zohran Kwame Mamdani on Thursday promised to "govern expansively and audaciously" as a democratic socialist by enacting the platform that powered his populist campaign and by prioritizing the poor and working class over the rich.

On a freezing New Year’s Day, the democratic socialist mayor took his ceremonial oath of office on the steps of New York City Hall.

The inauguration of New York City’s new mayor, Zohran Mamdani, was a celebration of many historic firsts. At 34, Mamdani, a democratic socialist, is the first South Asian and African-born person to hold the office and the first Muslim mayor to lead New York City.

Bernie Sanders swears in NYC's new democratic socialist mayor without his famous viral mittens from Biden's 2021 inauguration, marking a visual departure.

Ahead of his inauguration, NYC mayor-elect Zohran Mamdani appoints new leaders for the city’s legal office and health and human services.