New York City Mayor Zohran Mamdani has not fueled an exodus among Democrats in the nation’s largest city, according to voter registration data reviewed by Newsweek . Newsweek reached out to Mamdani’s office for comment via email on Monday. Mamdani’s election last year divided the Democratic Party. Progressives viewed his win as a major victory for the left, touting him as a candidate who would be best positioned to tackle affordability in a city where residents face a high cost of living.