New York Rep. Alexandria Ocasio-Cortez is backing three socialist candidates challenging incumbent Democrats in next month’s primaries — including the son of a celebrity doctor and a former campaign staffer for Mayor Zohran Mamdani.

The Bronx and Queens congresswoman revealed her slate of endorsements in down-ballot races Thursday, just as Mamdani shockingly boosted fellow DSA-er Darializa Avila Chevalier against longtime Manhattan Rep. Adriano Espaillat.

AOC, meanwhile, announced her backing of three Democratic Socialists of America members — David Orkin, Christian Celeste Tate and Eon Huntley — who want to bring far-left policies to the Big Apple, like making prostitution legal and preventing the NYPD from cooperating with ICE.

Rep. Alexandria Ocasio-Cortez has endorsed three Democratic Socialists of America members — David Orkin, Christian Celeste Tate and Eon Huntley.…