Zohran Mamdani, an outspoken critic of Israel, is the expected Democratic nominee for mayor in America’s most Jewish city and that’s raising alarms among some in the New York’s Jewish community.

The 33-year-old state lawmaker appeared at a National Action Network rally days after declaring victory over former Gov. Andrew Cuomo, the presumed favorite in the primary.

Adams has a shot in November’s general election — but he’s going to need to form a new coalition, and clear other candidates ...