In a stunning upset, progressive upstart Zohran Mamdani recently declared victory in the ranked-choice primary race to become the Democratic Party’s candidate for New York City mayor.

In doing so, the local lawmaker says his campaign “toppled a political dynasty” forcing former New York governor Andrew Cuomo to concede even before the final count was tallied.

So, who is Mamdani and why do so many New Yorkers support him? Karina Mitchell explains.