An NDP shirt adorned with campaign pins is shown at the NDP convention in Hamilton, Ont., in October, 2023. The party's new leader will be chosen at next year's leadership convention in March.

Left-wing activist Yves Engler on Monday formally applied to join the NDP leadership race, saying he has already raised $90,000 of the $100,000 required to stand, even though his candidacy has not yet been approved by the party.

Mr. Engler, a prominent pro-Palestinian activist with a history of confronting politicians in public places and posting their reactions to his questions on social media, will now face vetting by the NDP, a requirement for all candidates.

NDP leadership race chief electoral officer Éric Hébert-Daly has previously raised concerns about Mr. Engler soliciting donations for his

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