Zohran Mamdani delivered a political earthquake Tuesday in New York City’s Democratic mayoral primary, riding progressive demands for change in a city facing an affordability crisis to the brink of a stunning victory.

The concerns are deeply felt. Kathryn Wylde, chief executive of the Partnership for New York City, perhaps New York’ leading private sector business leadership organization, with a long history of working with city government, was asked to describe how business leaders felt about a Mamdani mayoralty. Her response? “Terror is the feeling.”

Ranked-choice voting results in New York City’s Democratic primary for mayor will be released next week. Zohran Mamdani led the first-round ballots.