Jeremy Corbyn, the former leader of the UK Labour Party who was expelled over allegations of antisemitism, has thrown his support behind Zohran Mamdani in New York City. On Sunday, he actively worked to bolster Mamdani’s influence as the latter aims to solidify his position in the city.

This collaboration between Mamdani and Corbyn comes just as the New York City mayoral race is heating up, with Mamdani positioning himself as the progressive alternative to the Democratic candidates.

Mamdani, known for his critical stance on Israel’s military operations in Gaza and his association with the Democratic Socialists of America (DSA), has similarly faced accusations of antisemitism, mirroring some of the controversies that surrounded Corbyn during his tenure.

On Sunday, Corbyn, who now serves as an independent Member of Parliament, took to Facebook to declare his endorsement of Mamdani. He shared a photo of himself holding a “North London 4 Zohran” shirt, signaling his backing.

With the New York City mayoral election just days away, Mamdani has secured a significant endorsement from UK politician Jeremy Corbyn. (Source: JeremyCorbynMP Facebook)

“Let’s get Zohran over the finish line for a New York that’s affordable for all!” the post read.

“Corbyn supporting Mamdani. What a surprise.” commented one social user. “Why are you interfering with influencing politics in New York?” asked another.

Corbyn also shared a phone-banking link which leads a website organized by the DSA’s NYC chapter which is urging volunteers to mobilize voters for Mamdani.

“Join NYC-DSA and Jeremy Corbyn, former leader of the UK’s Labour Party, as we call New Yorkers to get out the vote for Zohran Mamdani for mayor. We’re just two days from election day, and every conversation pushes us closer to winning a better New York,” the website reads.

Zohran Mamdani enlisted Jeremy Corbyn’s help in the New York City mayoral campaign just days before polling begins. (New York City DSA)

Corbyn’s well-documented history with antisemitism allegations runs back to 2020 when the UK’s Equality and Human Rights Commission (EHRC) found that the Labour Party under his leadership had committed unlawful acts of discrimination against Jewish members.

Corbyn was suspended and formally expelled from the Labour Party in 2024 because of his response to the report. He has since launched a new left-wing political party called “Your Party,” and continues to deny all allegations of antisemitism.

Reacting to the collaboration, former New York Governor and mayoral candidate Andrew Cuomo quickly condemned Mamdani’s decision, writing on X.

“Having Jeremy Corbyn — someone whose party was found to have committed unlawful acts of discrimination against Jewish people under his leadership – phone-banking for @ZohranKMamdani says everything you need to know.

NY doesn’t need politics of moral compromise. We need leadership that rejects antisemitism, extremism, and division in every form and in every corner,” he wrote.

New York City Democratic mayoral nominee Zohran Mamdani accepts an endorsement from the United Bodegas of America in the Bronx, New York City, on Wednesday, Oct. 29, 2025.  (Fox News Digital/Deirdre Heavey)

Meanwhile, a week before the election, a campaign finance watchdog group, the Coolidge Reagan Foundation, filed two criminal referrals against Mamdani, claiming he received illegal contributions from foreign donors.

The Mamdani campaign maintains that any issue regarding financial contributions has been resolved.

Fox News Digital has reached out to Zohran Mamdani for comment.