Zohran Mamdani sealed his mayoral victory in New York City with gains in several key areas. Here are some notable takeaways.

Jewish leaders had a mixed reaction to the election of Zohran Mamdani, who has repeatedly criticized Israel’s treatment of Palestinians and its conduct during the war in Gaza.

In a fiery speech after his win, the next mayor of New York warned Trump that the city will stand united: "To get to any of us, you will have to get through all of us."

A diverse but younger-skewing crowd filled the Paramount Theater in Brooklyn with enthusiasm, dancing to hip hop and celebrating the socialist's win.

Hundreds of volunteers join the first town hall gathering hosted by Mr. Mamdani and the New York City chapter of the Democratic Socialists of America. Days later, canvassers begin field work for Mr. Mamdani, a longtime D.S.A. member who was endorsed by the local chapter.

Zohran Mamdani, the newly elected mayor of New York City, is notable in many ways. He will become the city's youngest mayor since 1892, its first Muslim mayor and its first mayor born in Africa. That alone makes his victory over former Governor Andrew Cuomo and Republican nominee Curtis Silwa remarkable.

In his speech, Zohran Mamdani addressed Trump head on. Trump appeared to acknowledge Mamdani’s call-out, posting ”…AND SO IT BEGINS!” on his Truth Social site.

Zohran Mamdani, in his victory speech, celebrated New York’s immigrants, working class and young people and said the city could show the country how to defeat President Trump.