Zack Polanski has led the Green Party of England and Wales since winning a landslide leadership election in September 2025, replacing the prior co-leader model and tripling membership while securing record local election gains and the party's first by-election victory. As of early September 2026, he remains firmly in post, marking his first anniversary with plans to contest the Holborn and St Pancras by-election triggered by Keir Starmer's resignation—an early test of the party's challenge to Labour under new Prime Minister Andy Burnham. Internal party motions have flagged risks of stagnation and called for bolder policies, alongside scrutiny over donations, residency claims, and council tax, yet no formal leadership challenge or resignation has materialized ahead of the next scheduled contest around 2027. Trader assessments reflect these dynamics alongside the by-election timeline.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
October 31
8%

December 31
14%
$748 Vol.

October 31
8%

December 31
14%
An announcement of Zack Polanski's resignation/removal by this market's end date will immediately resolve this market to "Yes", regardless of when the announced resignation/removal goes into effect.
The resolution source for this market will be official information from Zack Polanski and the Green Party of England and Wales; however, a consensus of credible reporting may also be used.
Market Opened: Sep 3, 2026, 9:27 AM ET
Resolver
0x65070BE91...An announcement of Zack Polanski's resignation/removal by this market's end date will immediately resolve this market to "Yes", regardless of when the announced resignation/removal goes into effect.
The resolution source for this market will be official information from Zack Polanski and the Green Party of England and Wales; however, a consensus of credible reporting may also be used.
Resolver
0x65070BE91...Zack Polanski has led the Green Party of England and Wales since winning a landslide leadership election in September 2025, replacing the prior co-leader model and tripling membership while securing record local election gains and the party's first by-election victory. As of early September 2026, he remains firmly in post, marking his first anniversary with plans to contest the Holborn and St Pancras by-election triggered by Keir Starmer's resignation—an early test of the party's challenge to Labour under new Prime Minister Andy Burnham. Internal party motions have flagged risks of stagnation and called for bolder policies, alongside scrutiny over donations, residency claims, and council tax, yet no formal leadership challenge or resignation has materialized ahead of the next scheduled contest around 2027. Trader assessments reflect these dynamics alongside the by-election timeline.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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