Senator Bernie Sanders of Vermont will back Mr. Mamdani, joining Representative Alexandria Ocasio-Cortez in endorsing the front-runner of progressives.

New Yorkers are voting in a Democratic primary likely to pick the city’s next mayor. The incumbent mayor, Eric Adams, is ...

New Yorkers are voting in a Democratic primary likely to pick the city’s next mayor. The incumbent mayor, Eric Adams, is skipping the primary after his indictment led him to plummet in the ...