On June 23, a huge influx of Zohran-Mamdani-backed democratic socialists won their bids to join Congress.

Former city Comptroller Brad Lander and state Assemblywoman Claire Valdez were quickly projected by the Associated Press and NY1 to win over their establishment Democrat opponents.

And the win by Darializa Avila Chevalier over Rep. Adriano Espaillat in New York’s 13th House District echoed the stunning 2018 victory by her fellow DSA diehard Rep. Alexandria Ocasio-Cortez.

What happened during the NYC primaries? And how are establishment Dems reacting to the socialist takeover? Here’s what you need to know.