Zohran Mamdani, a young immigrant politician, has won the Democratic Party's nomination for mayor of New York City, facing opposition from President Trump and other rivals. Despite his leftist political affiliation and support for Palestinian rights, Mamdani's focus on economic issues and housing affordability has garnered support from diverse New Yorkers. However, he faces challenges from rivals like Andrew Cuomo and Eric Adams, as well as a campaign led by the White House to discredit him.