In a packed concert venue on Sunday, New York City's youngest mayor in over a century took the stage to tout his achievements during his first 100 days in office.
Thousands gathered at the Knockdown Center, a former factory in Queens, some carrying signs that said "Pothole Politics" and "Childcare for All".
"Nothing is too big for New York City to take on," Mamdani told them. "And over the past 14 weeks, we have proved that there is no task too small either."
He claimed a number of accomplishments, including securing $1.2bn for child care and fixing 100,000 potholes. But several items from his lofty agenda have yet to be accomplished.
"He's picking some of the stuff that he thinks he can most easily build support with, trying to find issues that have a broad base of support behind them instead of picking potentially divisive issues to start with," said Justin de Benedictis-Kessner, public policy professor at Harvard University's Kennedy School of Government.
