New York City Mayor Zohran Mamdani endorsed three congressional candidates during the New York primaries — and they all won. Vox’s Astead Herndon explains how this shows a continued rise in the populist left. Subscribe to our channel and turn on notifications (🔔) so you don't miss any videos: http://goo.gl/0bsAjO Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out http://www.vox.com. Watch our full video