The Democratic Socialists of America (DSA) party, of which Zohran Mamdani is a prominent member, has doubled down on its extremism — supporting armed struggle against Israel and threatening to expel members who do not comply with its hard-line dictates against the Jewish state, The Post has learned.

The DSA adopted the new resolutions “For a Fighting Anti-Zionist DSA,” at its biannual national conference in Chicago last month, according to documents viewed by The Post.

As a member of the party, mayoral candidate Mamdani could face pressure from its leadership body to adhere to its stance — which could dramatically affect his campaign.

Members, including lawmakers backed by the party, now face expulsion if they oppose the Boycott, Divestment and Sanctions movement against Israel or wor

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