Democrats have swept the first major elections of Donald Trump's second term, with the US president saying the ongoing government shutdown is a "big factor".

A Fox News Voter Poll of more than 4,700 registered voters in New York City provides new insights into Democrat candidate Zohran Mamdani's victory.

Zohran Mamdani stormed to victory in the New York City mayoral elections with a pledge to improve the quality of life for the city’s eight and half million residents.

New York City Mayor-elect Zohran Mamdani on Wednesday announced an all-female team of co-chairs for his transition team, including former Federal Trade Commission chair Lina Khan.

When Zohran Mamdani becomes mayor, he will immediately have to confront a host of issues that have little to do with “freezing the rent,” his main housing-related pledge.

Mamdani named a transition team that included former city and federal officials, nonprofit executives, and City Hall veterans.

During his campaign, Mamdani visited a Clinton Hill senior center and took time to listen to residents' concerns. Ester Geddis, who was photographed with Mamdani during the visit, is living on a fixed income. She said she hopes he'll help keep costs down.

Zohran Mamdani has just been elected mayor of New York City and is already challenging President Donald Trump.

Nair, the iconic filmmaker behind such classics as "Mississippi Masala," starring a young Denzel Washington, "The Namesake" and "Monsoon Wedding," was wearing a bright blue and green sari and sporting a traditional Hindu bindi on her forehead. She kissed the mayor-elect's arm.

Off-year election results deliver psychological boost to Democrats with gubernatorial victories, but questions remain about lasting impact on Trump's influence.