Zack Polanski, elected Green Party of England and Wales leader in September 2025 with over 84% of the vote, remains in post as of early September 2026 while pursuing selection as the party's candidate in the Holborn and St Pancras by-election. Under his leadership the party has tripled membership, secured its first Westminster by-election win in Gorton and Denton, and recorded strong local election gains, though national polling has moderated and internal concerns have surfaced over social media style, policy direction, and risks of stagnation amid Labour's recovery. Past scrutiny has included a returned donation and questions over residence and prior statements, yet no formal leadership challenge or resignation signals have emerged. The upcoming candidate selection process and by-election timeline represent near-term focal points that could influence party dynamics and his position.