Politics

NYC Mayor-elect Mamdani to be Sworn In by Letitia James and Bernie Sanders

Illustration for: NYC Mayor-elect Mamdani to be Sworn In by Letitia James and Bernie Sanders
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Dec 22, 2025

THE BARE STORY

New York City Mayor-elect Zohran Mamdani will be sworn into office on January 1 through two separate ceremonies, his transition office announced. New York Attorney General Letitia James is set to administer the official oath of office at midnight in a private ceremony. Later that day, Senator Bernie Sanders will administer the oath again during a public inauguration at City Hall.

The public event is planned to be larger than past mayoral inaugurations. In addition to the ticketed ceremony, which will also include the swearing-in of Comptroller-elect Mark Levine and Public Advocate Jumaane Williams, a block party will be held on Broadway. According to Mamdani's team, tens of thousands of people are anticipated to be able to attend the block party, which is titled "Inauguration of a New Era."

In a statement, Senator Sanders called Mamdani a "new generation of progressive leadership" and described his victory as a win for the "working-class movement." Attorney General James said it was an honor to swear Mamdani in, adding that his campaign brought New Yorkers together.

Mamdani stated it was an honor to be sworn in by two leaders he has long admired. He praised James for defending New Yorkers against "powerful interests" and credited Sanders for his "steadfast commitment to the dignity of working people" and his belief in a government that serves "the many, not just the few."

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Perspective by Claude

• The state's top legal official will administer the official oath of office. New York Attorney General Letitia James is set to swear in Mayor-elect Mamdani in the official midnight ceremony. James stated it was an honor, noting that Mamdani's campaign brought New Yorkers together. Mamdani returned the praise, commending James for her work defending New Yorkers against "powerful interests."

• The inauguration ceremony will include other top city officials. The public inauguration at City Hall is not solely for the mayor-elect. The event will also feature the swearing-in of Comptroller-elect Mark Levine and Public Advocate Jumaane Williams, presenting a unified picture of the city's incoming leadership.

• The mayor-elect expressed admiration for established leaders. In his official statement, Mamdani said it was an honor to be sworn in by two leaders he has long admired. This choice of officiants is presented as a show of respect for key figures in state and national politics, connecting his new administration to existing power structures.

How it may affect me

As a U.S. reader:

• The large public inauguration and block party may cause significant street closures and transit disruptions for those in or traveling to New York City on January 1.

• The mayor's messaging and choice of officiants suggest potential new policies in NYC focusing on working-class issues, which could serve as a model for other cities.

• The event's framing as a "win for the working-class movement" may signal a growing influence of progressive leadership in major U.S. cities, potentially impacting future elections.

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