It isn't hard to understand Mamdani's appeal, especially when compared to Cuomo. Being seen as a status quo, establishment candidate is toxic in both parties right now, and Cuomo is nothing if not a retread and symbol of status quo Establishment Democrats. Mamdani is young, attractive, a fresh face, and whatever else he definitely is seen as the outsider with new ideas, socialist or not. It shouldn't be surprising that he's doing this well, even if he loses in the end in the primary or the general.