On Tuesday, New York City’s Democratic voters will decide whether Zohran Mamdani controls the future of their party. With equal parts perfidy and chutzpah, Mamdani has broken with party leaders who supported his rapid rise in last year’s mayoral race to endorse three House candidates. Three-decade incumbent Nydia Velázquez, esteemed by progressives and Hispanic voters alike, was the first member of Congress to endorse Mamdani last April. “It’s just beautiful to have someone so authentic,” she