In the Democratic primary for New York’s mayoral contest, Zohran Mamdani, a 33-year-old migrant of Indian origin, defeated the 67-year-old Andrew Cuomo, part of New York’s biggest political dynasty. So why did Mamdani win? And what are the possible national and global implications? Ashutosh Varshney, Sol Goldman Professor of International Studies and the Social Sciences and Professor of Political Science at Brown University, explains in this week's column for ThePrint