As Zohran Mamdani turns from campaigning to governing, a source close to the mayor-elect told ABC News he is intent on reaching out to New Yorkers who did not vote for him and send a strong signal that he plans to be a mayor for all New Yorkers.

The election of a left-wing Muslim immigrant, who plans to increase taxes on big business and the rich, to run the largest and most important city in the United States represents a defining political ...

"My friends, we have toppled a political dynasty," he told the crowd during a victory speech, touting voters' "mandate for change" and "mandate for a city we can afford".