Zack Polanski, elected Green Party of England and Wales leader in a September 2025 landslide with 85% support, remains in post amid mixed recent developments. Party membership has more than tripled and the Greens secured their first Westminster by-election win plus record local gains under his "eco-populist" platform. However, scrutiny over past statements on his career, an impermissible donation, and residence arrangements has prompted internal criticism, including a councillor resignation and a conference motion warning of potential stagnation. His plan to contest the Holborn and St Pancras by-election adds visibility, while the next scheduled leadership vote is not due until 2027. These elements shape trader views on near-term removal risks.