Labour holds Holborn and St Pancras as Green leader Zack Polanski suffers byelection defeat
Labour successfully held the parliamentary seat of Holborn and St Pancras in a recent byelection, defeating Green party leader Zack Polanski. Pollection analyst John Curtice noted that while Labour remains in a better position than six months ago, the result also reflects challenges for the Green party following internal controversies and a controversial conference motion regarding Zionism.
Key points
- Labour held the seat of Holborn and St Pancras in a byelection.
- Green party leader Zack Polanski lost the byelection contest.
- Polling analyst John Curtice stated Labour remains behind its 2025 popularity but is in a stronger position than six months ago.
- Pollster Peter Kellner noted that the true increase in the leftwing anti-Labour vote was only 3.5 percentage points when accounting for past independent candidate results.
What happened
Labour held the seat of Holborn and St Pancras in a byelection, resulting in a defeat for Green party candidate Zack Polanski according to reporting by The Guardian. Polling analyst John Curtice described the outcome as a reflection of national opinion polls, noting that Labour is in a better position than six months ago but remains less popular than it was in 2025.
Who said what
Polling analyst John Curtice stated that the Greens remain a more significant player historically than ever before, though they have lost ground gained during Polanski's first year as leader. Meanwhile, pollster Peter Kellner analyzed the vote share, pointing out that the leftwing vote two years ago was split between the Greens and an independent candidate, meaning the actual increase in the leftwing anti-Labour vote is 3.5 percentage points.
Former Green leader Caroline Lucas and activist Rupert Read are scheduled to launch a mini-manifesto titled Climate Popularism on 15 October, which addresses crisis resilience and shifts away from divisive politics.
Context
The byelection followed controversy surrounding a Zionism motion passed at the Green party conference and Polanski's endorsement of related statements prior to the event. Observers note that these developments have left the party facing introspection and a weakened political standing.
What happens next
Zack Polanski faces a challenging period following the electoral setback, while the Green party confronts internal debates regarding its political strategy and public messaging. Caroline Lucas and Rupert Read's upcoming publication on 15 October aims to offer a new guide for climate popularism and crisis resilience.
Why it matters
The Holborn and St Pancras byelection outcome highlights shifting political dynamics within the left-of-centre electorate in the United Kingdom, illustrating both Labour's recovery from previous lows and the strategic difficulties facing the Green party under Zack Polanski's leadership.
