See photos from NYC Mayor Zohran Mamdani's swearing-in ceremony

Zohran Mamdani is sworn in as New York City's 112th mayor by New York Attorney General Letitia James, left, alongside his wife Rama Duwaji, right, in the former City Hall subway station on January 1, 2026 in New York City. Mamdani's term as mayor begins immediately in the new year, and a public inauguration will also take place in the afternoon at City Hall. (Photo by Amir Hamja-Pool/Getty Images)

New York Attorney General Letitia James arrives to swear in Zohran Mamdani as New York City's 112th mayor in the former City Hall subway station on January 1, 2026 in New York City. Mamdani's term as mayor begins immediately in the new year, and a public inauguration will also take place in the afternoon at City Hall.

Zohran Mamdani is sworn in as New York City's 112th mayor in the former City Hall subway station on January 1, 2026 in New York City. Mamdani's term as mayor begins immediately in the new year, and a public inauguration will also take place in the afternoon at City Hall.

Zohran Mamdani shares a moment with his wife Rama Duwaji as he is sworn in as New York City's 112th mayor in the former City Hall subway station on January 1, 2026 in New York City. Mamdani's term as mayor begins immediately in the new year, and a public inauguration will also take place in the afternoon at City Hall.

Zohran Mamdani arrives with his wife Rama Duwaji to be sworn in as New York City's 112th mayor in the former City Hall subway station on January 1, 2026 in New York City. Mamdani's term as mayor begins immediately in the new year, and a public inauguration will also take place in the afternoon at City Hall.

Zohran Mamdani hugs New York Attorney General Letitia James after being sworn in as New York City's 112th mayor in the former City Hall subway station on January 1, 2026 in New York City. Mamdani's term as mayor begins immediately in the new year, and a public inauguration will also take place in the afternoon at City Hall.