Zack Polanski faces internal party divisions and calls for his resignation following the Green Party's loss in the October 2026 Holborn and St Pancras by-election, where he placed second to Labour, and a divisive conference motion equating Zionism with racism that he did not attend. Senior figures including former leaders have criticized his handling of the policy debate, while some members have urged him to step aside, citing damage to the party's standing. Polanski has stated he will continue and respects members' decisions, with the next scheduled leadership election set for summer 2027. Early removal requires either signatures from 10 percent of members or a two-thirds vote of the Green Party Council, procedural thresholds that limit immediate challenges despite the recent setbacks.