The Democrat running for Nassau County district attorney is threatening to sue the state Republican Party over ads linking her to socialist Big Apple mayoral front-runner Zohran Mamdani, The Post has learned.

An attorney for candidate Nicole Aloise sent a “cease and desist” letter to the GOP Campaign Committee earlier this month, calling the ads “completely fabricated, false and defamatory.”

“Nicole Aloise stands with Mamdani,” one of the adverts says. 4

Another shows images of Aloise and Mamdani next to each and dubs them “political twins.”

Aloise’s lawyer, Anthony Rattobali, threatened to file a defamation suit if the Republicans backing GOP incumbent DA Anne Donnelly refuse to stop publishing the ads.

“There is no source citation for this statement. It is completely fabricated

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