Short answer: As of the latest available results, Zohran Mamdani won the New York City mayoral race, and Mikie Sherrill won the New Jersey governor’s race. For Jersey City specifically, results were still developing with multiple candidates advancing, including James Solomon and Jim McGreevey, according to live updates. Details and context:

• New York City mayor: Zohran Mamdani (Democrat) projected winner, making him the city's first Muslim and South Asian mayor. [latest results coverage]
• New Jersey governor: Mikie Sherrill (Democrat) defeated Jack Ciattarelli, ensuring continued Democratic control of the governor's office. [live results coverage]
• Jersey City mayoral race: Incumbent or familiar names such as James Solomon and Jim McGreevey were among the front-runners; results were being updated as precincts reported. [live updates]

If you’d like, I can pull the most current, official results for each race (city-by-city or district-by-district) and provide a concise table with vote shares and status (projected win, certified, etc.).