Recent developments have intensified scrutiny of Zack Polanski’s position as Green Party of England and Wales leader. His defeat in the October 8-9 Holborn and St Pancras by-election, where Labour retained the seat with 45% to the Greens’ 33% despite a substantial swing, coincided with backlash over a narrow party conference vote declaring Zionism a form of racism. Polanski missed the vote while campaigning and later faced calls to resign from figures including the chair of Jewish Greens and former party leaders citing insufficient leadership. Israel barred his entry following the motion. Party rules require a significant petition or council vote for an unscheduled challenge before the scheduled leadership contest next summer, limiting immediate removal options despite member divisions and some resignations. Polanski has affirmed his intent to continue and proposed internal reforms.