Photo via BBC News

Polanski faces greatest crisis of his leadership so far

Read the original at BBC News ↗
Cite

Mason, C. (2026, October 9). Polanski faces greatest crisis of his leadership so far. BBC News. https://www.bbc.co.uk/news/articles/cm70p821d6w4o?at_medium=RSS&at_campaign=rss

Dated when The Aporia collected the article, usually within hours of publication. Check the original for its exact date and byline.

BBC News · collected 2026-10-09 · by Chris Mason

Quick Summary

Zack Polanski, leader of the Green Party of England and Wales, faces significant criticism following his party's conference vote declaring Zionism as a form of racism. Despite the Green Party achieving its second-best result in a Westminster by-election, with Sagal Abdi-Wali becoming the new MP for Holborn and St Pancras, Polanski is under intense pressure due to his stance on the controversial motion. Critics within the party argue that recent membership growth has been driven by hard-left campaigners focused more on Middle East issues than environmental concerns, leading to calls for Polanski to address or retract the contentious resolution.
Written by AI on 2026-10-09, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

The Holborn and St Pancras by-election took place on Thursday to replace former Prime Minister Keir Starmer, who had resigned from his seat in Parliament. The race is between Labour's Dani Arbid-supported candidate Fadila Halima, also known as Ms Abdi-Wali (the exact name varies across sources), and the Green Party leader Zack Polanski. This election is significant for Prime Minister Andy Burnham, who needs to restore faith in Labour among left-wing voters after its decline during the Gaza war.

The North London constituency has been a Labour stronghold since 1983, held by Frank Dobson for 32 years and Keir Starmer for 11. Polanski is hoping to break this streak and secure his seat in Parliament. However, it's noted that Polls indicate the contest between Labour’s Halima and Green Party leader Polanski is close.

Polanski has faced a difficult week after his party passed a controversial motion at its conference asserting “Zionism is racism,” though he abstained from voting on this resolution. He later stated his commitment to inclusivity, rejecting exclusion based on religious or communal affiliation.

The election also marks a critical moment for Polanski's leadership of the Green Party, which has seen significant growth, gaining over 440 councillors and control of five councils in recent local elections.

Polanski appeals to voters by arguing that a Green voice can push Labour on issues such as rent controls and putting Thames Water into public ownership. He also emphasizes the importance of voting against new drilling in the North Sea, an issue that Labour delayed addressing until after the election results.

Overall, while polls suggest a close race, it remains uncertain whether Polanski can upset the long-standing Labour dominance in this constituency.

Written for “Holborn By-election Campaigns” on 2026-11-01, grounded in this article and the 47 other(s) covering the same event.

Story

📰 Holborn By-election Campaigns
Politics · 48 article(s) covering the same event. Compare every outlet's account →

Compared with similar articles

This article reads unscored and hedges 11% of its claims. Each row says how that neighbour differs.
Daily Mail
⚖️ Leans strongly right Hedges 1 of 15 claims Outlet record 68/100
“The articles describe different aspects of the Holborn by-election aftermath: one focuses on Polanski's campaign efforts before the election, while the other discusses the post-election situation.”
The Guardian
⚖️ Leans left Hedges 2 of 39 claims Outlet record 66/100
“The articles describe different aspects of a by-election in Holborn and St Pancras; Article A focuses on George Galloway's campaign from abroad, while Article B discusses the aftermath with focus on Sagal Abdi-Wali winning and Zack Polanski's reaction.”
Evening Standard
Hedges 1 of 22 claims Outlet record 65/100
“The articles describe different aspects of a broader political situation: Article A focuses on the by-election to replace Starmer, while Article B discusses Polanski's reaction and leadership crisis after the by-election results.”
The Guardian
⚖️ Leans left Hedges 1 of 23 claims Outlet record 66/100
“The articles describe different stages of a single election campaign: Article A covers the opening day of voting in the Holborn and St Pancras byelection, while Article B discusses the aftermath with focus on Zack Polanski's leadership crisis following the results.”
Evening Standard
⚖️ Leans right Hedges 4 of 29 claims Outlet record 65/100
Evening Standard
Hedges 0 of 4 claims Outlet record 65/100
“Article A reports on Labour retaining the Holborn seat in a by-election, while Article B focuses on the aftermath's impact on Zack Polanski as Green Party leader.”
Evening Standard
Hedges 1 of 31 claims Outlet record 65/100
Evening Standard
Hedges 1 of 29 claims Outlet record 65/100
Evening Standard
⚖️ Leans left Hedges 0 of 31 claims Outlet record 65/100
“While both articles discuss Zack Polanski's leadership crisis following a by-election, they describe different aspects of the incident and its aftermath.”
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
28
sentences that state something as happening or true
Uncertain
11%
3 of 28 hedged ("reportedly", "may", "according to")
Leaning
withheld
no quote in the article backed the model's score
Publisher signals
68/100
BBC News's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
48
Politics
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-10-09 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

BBC News · 4791 article(s) · 6 correction(s) detected
Running correction rate · 6 correction(s)

Who wrote this

Chris Mason
21 article(s) here · 1 carrying a prediction
🔮 - Published This was a Budget I would describe as a flotilla of small measures.
🔮 Let's be clear, plenty in Westminster in all parties will say that the amount of money around isn't everything – how well taxpayers' money is spent and where it is spent matters too.
🔮 In fact it felt near inevitable after President Trump blurted out – after his first phone call with Burnham in the summer – that the prime minister had told him he would "open up the North Sea".
🔮 The SNP is buoyant, its activists gathering for the first time since it won, in May, a fifth consecutive Scottish Parliament election, albeit with fewer seats than they won in 2021.
🔮 In the film, Undercover: A Year in Reform,, external a Reform councillor and deputy mayor of Solihull is recorded calling Asian homeowners "parasites".
🔮 Neither Charlie Maynard, a former Treasury spokesman and Alison Bennett, a former care and carers spokeswoman, have been publicly explicit about the reasons for their departures and both sought to express their concerns to Sir Ed privately and discreetly.
🔮 And that, you will remember, was merely the start, as years of wrangling began.
2026-10-13 · assertive framing · Why the prime minister wants to talk about Brexit again
🔮 - Published The prime minister is expected to tell the Commons later it would be a "dereliction of duty" to turn down a closer relationship with the European Union - if one can be negotiated with Brussels.
🔮 She arrived in the UK as a child refugee from Somalia in the 1990s, grew up locally in Camden, became a councillor four years ago, the council leader in May and is now Sir Keir Starmer's successor as the MP.
2026-10-09 · assertive framing · Polanski faces greatest crisis of his leadership so far
🔮 Reform UK, for instance, claim it is a "tax cut for multi-millionaires" and that their plan to cut income tax for millions by raising the threshold at which most people start paying it will benefit far more people.
Also by Chris Mason
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 21 articles by Chris Mason →

Topics

Holborn Labour London Reform Zionism

Subjects

Polanski PERSON · 7× Green PERSON · 3× Israel GPE · 3× Palestinian NORP · 3× Holborn GPE · 2× Jewish NORP · 2× Labour ORG · 2× London GPE · 2× Reform ORG · 2× Zionism NORP · 2×

Narrative

His failure to win here would have prompted questions from some about stalling momentum, but the party can and does point to the big swing to them since the general election and a result that was by a long way the second best ever result for them at a Westminster by-election. Incidentally, in finishing third the Conservatives have beaten Reform UK for the first time in an English by-election since the general election.
framing: assertive · carried by 1 article(s) · first seen 2026-10-09
🔮 She arrived in the UK as a child refugee from Somalia in the 1990s, grew up locally in Camden, became a councillor four years ago, the council leader in May and is now Sir Keir Starmer's successor as the MP.
2026-10-09 · BBC News
Polanski faces greatest crisis of his leadership so far · assertive framing

Claims (28 extracted, 3 hedged)

Make no mistake, the new MP for Holborn and St Pancras in north London, Sagal Abdi-Wali, has quite the story to tell. asserted
MP → make → story
She arrived in the UK as a child refugee from Somalia in the 1990s, grew up locally in Camden, became a councillor four years ago, the council leader in May and is now Sir Keir Starmer's successor as the MP. uncertain
She → arrive → MP
But in the offices of Camden Council at three o'clock this morning, the focus of the press pack, me included, was on Zack Polanski, the leader of the Green Party of England and Wales, as we waited for the result. asserted
we → include → result
So a Labour victory here falls in the column marked "relief" for Downing Street rather than "jubilation". asserted
victory → fall → jubilation
Nonetheless, the Greens did very well in local elections in London in May, riding the crest of a political wave which began shortly after Polanski became the party's leader just over a year ago. uncertain
Polanski → do → leader
His failure to win here would have prompted questions from some about stalling momentum, but the party can and does point to the big swing to them since the general election and a result that was by a long way the second best ever result for them at a Westminster by-election. Incidentally, in finishing third the Conservatives have beaten Reform UK for the first time in an English by-election since the general election. asserted
Conservatives → win → election
It seems likely that Reform's result was hampered by Restore Britain, who managed almost half as many votes as Reform did, in a constituency not very favourable to either party. asserted
Reform → seem → party
But the real reason for the nocturnal scramble of cameras, microphones and questions for Polanski had little to do with the by election – and everything to do with a vote at the Green Party's conference in Brighton last weekend. asserted
reason → have → Brighton
Activists there passed a motion declaring Zionism as a form of racism. asserted
Activists → pass → racism
The motion defined Zionism as an ideology supporting "an ethnonationalist Jewish state" and backed a "single democratic Palestinian state in all of historic Palestine", which includes modern-day Israel. asserted
which → define → Israel
Polanski didn't take part in the vote because, he said, he chose to campaign in Holborn and St Pancras instead. asserted
he → take → Holborn
And – until today at least – he has been repeatedly declining to do interviews, as the pressure on him as ratcheted up. asserted
pressure → decline → him
"He has created a monster he either can't or won't control," was how one Green figure put it to me - this person one among many left furious at what has happened. asserted
what → create → many
Party membership has increased more than three fold in the last year and internal critics of Polanski say this includes hard-left campaigners focused on the Middle East rather than environmental concerns. asserted
this → increase → concerns
Within the party and beyond it, a row is now boiling. asserted
row → boil → it
Polanski, who is himself Jewish, has been banned from Israel. asserted
who → ban → Israel
The Jewish Leadership Council and the Board of Deputies of British Jews have criticised the party, as have sister Green parties in Europe. asserted
parties → criticise → Europe
And – significantly – the former party leader and one of the most important figures in the Green movement of her generation, Caroline Lucas, told BBC Newsnight Polanski had failed to show leadership over the issue. asserted
Polanski → tell → issue
She also failed to back him carrying on as leader. asserted
She → fail → leader
Asked by reporters after the by-election result if he could continue as leader, Polanski insisted "of course I can carry on". uncertain
I → ask → course
He did not explicitly reject the motion his party has passed, saying there was an "ongoing genocide and the displacement of the Palestinian people". asserted
party → reject → people
"I believe that is clearly racist," he added. asserted
he → believe → ?
Israel has repeatedly denied its actions in Gaza amount to genocide. asserted
actions → deny → genocide
And asked if he believed in a two-state solution – an Israeli and Palestinian state existing peacefully alongside each other – he said "I believe it is not our role to decide". asserted
it → ask → other
He repeated that "it is my job to reassure people and make sure that we bring our party together". asserted
bring → repeat → party
"No one will be excluded in the Green Party based on faith and religion," he said. asserted
he → exclude → faith
But Polanski now confronts the greatest crisis of his leadership so far. asserted
Polanski → confront → leadership
He faces open, public insurrection about his judgement from senior figures internally and opprobrium from plenty of others beyond the party. asserted
He → face → party
💬Give feedback
🕘History 🎫Support