Zohran Mamdani built his campaign on promises to dismantle privilege but new accounts of his childhood reveal that the self-styled socialist firebrand was educated amid the very elite institutions he now rails against. The 33-year-old Democratic Socialist lawmaker, who has electrified young voters with pledges to freeze rents, free childcare and taxing the rich, spent his formative years at a $60,000-a-year progressive private school on Manhattan's Upper West Side. Former classmates describe him as charismatic, confident and adored - a far cry from the struggling working-class narrative that has fueled his meteoric political rise. His upbringing, stretching from Uganda to...