New York voters have elected Zohran Mamdani, a young leftist and self-described socialist, as the city's next mayor in a historic win that will make him the first Muslim to hold the office. Mamdani's victory came despite fierce attacks on his policies and background from President Donald Trump, business elites, and conservative media, as well as a competitive race against former governor Andrew Cuomo and Republican Curtis Sliwa. The election saw high voter turnout and was part of a broader night of Democratic successes, with the party also winning key governor races in Virginia and New Jersey. Mamdani campaigned on tackling the cost of living, promising free city bus travel, childcare, and city-run grocery stores, and built support through grassroots organizing and social media. His win highlights ongoing debates within the Democratic Party about its future direction and sets the stage for contentious politics in the lead-up to the midterm elections.