Zohran Mamdani said he would begin preparing to deliver on his ambitious affordability agenda, one day after claiming a historic victory in New York City's mayoral race. Mamdani, a 34-year-old democratic socialist, will be the city's first Muslim mayor and the youngest in over a century. He defeated former Gov. Andrew Cuomo and Republican Curtis Sliwa. Mamdani faces challenges in implementing his ambitious agenda, including free childcare and city-run grocery stores. He said in an interview Wednesday that he was confident in delivering on those promises. He said he would spend the next 57 days before his inauguration preparing to hit the ground running, while building a team characterized by excellence.