Zohran Mamdani wins the New York City mayoral race, and Democrats are projected to win governor races in Virginia and New Jersey too - here's how the night unfolded at a glance
Mamdani, 34, becomes New York City's first Muslim mayor and youngest person in over a century to lead the largest city in the US - "In this moment of political darkness, New York will be the light," Mamdani says in a victory speech where he addresses Trump directly
Trump, who had threatened to cut NYC's federal funding if Mamdani beat independent Andrew Cuomo and Republican Curtis Sliwa, wrote on social media earlier: "And so it begins"
Mamdani has sealed a remarkable victory, but real challenges lie ahead and his successes - and failures - will be closely scrutinised, writes Anthony Zurcher
Meanwhile, Californians vote to redraw the state's congressional districts to favour the Democratic Party ahead of elections next year
In his first interview since being elected, Zohran Mamdani tells ABC that his victory gives him a mandate to pursue an "ambitious affordability agenda", aiming to transform "the most expensive city" in the US into "one that's affordable".
Asked if he can do that without putting up taxes, he says he will need to raise them for the "top 1% of New Yorkers".
Mamdani plans to introduce a flat tax of 2% for New Yorkers who make more than $1m (£770,000) per year. He also plans to raise the corporate tax rate in New York to 11.5%, matching the top end of New Jersey's range. He says this will raise around $9bn.
Asked if this will drive job creators out of the city, Mamdani says workers are already leaving due to the high cost of childcare, making it hard for businesses to retain talent.
Before the election, US President Donald Trump threatened to cut federal funding to the city if Mamdani won.Mamdani says he is prepared to stand up to the president if he decides to harm New York City. "His threats are inevitable," Mamdani says.