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.

Here are some of the factors that drove Zohran Mamdani to the cusp of a seismic upset, and how they will affect the general election in November.

Cuomo, who long led polls in the Democratic primary, conceded Tuesday night before vote-counting was even finished.