Polls now closed in Virginia
Polls are now closed in Virginia, where there is a closely watched governor's race.
Mamdani urged the city to "breathe this moment in."
Democrats triumphed in high-profile races that unfolded across the country on Tuesday, including New York City's mayoral election and governor's races in New Jersey and Virginia.
In California, voters also chose to redraw their state's congressional map in a move that could net Democrats five House seats.
The elections help provide a picture of how Americans feel about President Donald Trump's first nine months in office. Following a wave of Republican losses, Trump tried to blame the election results on his not being on the ballot and the prolonged government shutdown.
Polls are now closed in Virginia, where there is a closely watched governor's race.
Taxes and the economy are the most important issues for New Jersey voters, according to a preliminary exit poll analysis by ABC News.
Most New Jersey voters said the economy in the state was doing "not so good" or "poor," and that property taxes were "a major problem" where they live, according to the analysis.
Most New Jersey voters also said electricity costs where they live are "a major problem," according to the analysis.
-ABC News' Emily Guskin
Election officials in Kentucky felt compelled to address a surprising complaint from some constituents on Tuesday: Why are polling places closed?
The answer? There aren’t any elections in Kentucky.
That didn’t keep some voters in the state from flocking to polling places, only to be disappointed to learn that they could not vote for high-profile races in Virginia and New York, according to Kentucky Secretary of State Michael Adams.
“We’re getting calls about polls being closed. They are closed because we do not have elections today," he wrote on X. "Kentucky votes next year. You cannot vote today in Kentucky for the mayor of New York City or the Governor of Virginia. Sorry.”
-ABC News' Lucien Bruggeman
More than half of voters in New York City said Tuesday that the cost of living was the most important issue facing the city, dwarfing the other issues measured in preliminary ABC News exit polling.
-ABC News' Emily Guskin