New Delhi, July 1 -- Zohran Mamdani, a 33-year-old democratic socialist and state assembly member, has officially won New York City's Democratic mayoral primary, defeating former Governor Andrew Cuomo by a wide margin and shaking up the city's political establishment.

The Associated Press called the race Tuesday after the Board of Elections released the results of the ranked choice vote tabulation. Mamdani finished 12 percentage points ahead of Cuomo.

His win had been expected since he secured a commanding lead on June 24, but he fell just shy of the 50% threshold needed to avoid additional counting under the city's ranked choice voting system.

"I am so humbled by the faith New Yorkers have placed in our movement," Mamdani said in a st...