The Aporia · Polanksi on the ropes: Green Party leader is left fighting for his political future after humiliating by-election defeat

Green Party leader Zack Polanski faced a significant setback when he lost a by-election in Holborn and St Pancras to Labour candidate Sagal Abdi-Wali by more than 3,000 votes. The defeat followed a controversial party conference vote that labeled Zionism as racism, leading some members, including former leaders, to call for Polanski's resignation due to what they see as his failure to address the motion adequately. Senior figures within the Green Party are now questioning Polanski’s leadership, with Caroline Lucas suggesting he should have been present and voted on the contentious issue.

Written by AI on 2026-10-10, from this article's own text only (the story summary below draws on all the coverage).

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 2026-10-31, grounded in this article and the 47 other(s) covering the same event.

📰 Holborn By-election Campaigns

Politics · 48 article(s) covering the same event. Compare every outlet's account →

This article reads unscored and hedges 10% of its claims. Each row says how that neighbour differs.

Polanski insists he will carry on as Green leader despite by-election defeat Same event

Evening Standard

⚖️ Leans left Hedges 0 of 31 claims Outlet record 65/100

UK PM Burnham's Labour Party faces challenge from Greens in Starmer's old seat Same event

The Straits Times

⚖️ Leans right Hedges 5 of 24 claims Outlet record 66/100

Counting begins in Holborn and St Pancras as Polanski could come under pressure Same event

Evening Standard

⚖️ Leans right Hedges 4 of 29 claims Outlet record 65/100

Polanski vows to carry on as Greens leader after by-election defeat to Labour Same event

Evening Standard

Hedges 1 of 29 claims Outlet record 65/100

Is Zack Polanski for the chop? Green leader under intense pressure after Holborn by-election loss and Zionism vote debacle Same event

Evening Standard

Hedges 2 of 14 claims Outlet record 65/100

Shadow chancellor to address Tory conference as he claims slashing red tape could cut cost of new houses by £50,000 – UK politics live Different event

The Guardian

Hedges 4 of 31 claims Outlet record 66/100

“The articles describe different events: one is about Zack Polanski being banned from Israel due to a party motion, while the other discusses his political challenges following a by-election defeat.”

Head of Jewish Greens says she may leave party over ‘Zionism is racism’ vote Different event

The Guardian

Hedges 8 of 27 claims Outlet record 66/100

“The articles describe different events: one about a potential resignation due to a vote on Zionism and another about a political defeat in a by-election.”

Polanski skips City Hall duties as he throws everything at Holborn by-election bid Different event

Evening Standard

⚖️ Leans right Hedges 1 of 15 claims Outlet record 65/100

“Article A reports on Polanski's campaign activities for the by-election, while Article B describes his defeat in the election and its aftermath.”

Polanski vows to carry on as Greens leader after by-election defeat to Labour Same event

Evening Standard

Hedges 1 of 31 claims Outlet record 65/100

Polanski faces greatest crisis of his leadership so far Same event

BBC News

Hedges 3 of 28 claims Outlet record 68/100

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The loss topped off a chaotic week for the leader in which the party passed a controversial 'Zionism is racism' motion, effectively calling for the destruction of Israel Green Party grandee and former leader Caroline Lucas raised doubts about Mr Polanski's future as leader of her party When asked whether Mr Polanski should resign, former Scottish Greens leader Mr Harper said: 'He should never have been in the post in the first place, but yes.'

framing: assertive · carried by 1 article(s) · first seen 2026-10-10

2026-10-10 · Daily Mail

Polanksi on the ropes: Green Party leader is left fighting for his political future after humiliating by-election defeat · assertive framing

Zack Polanski was last night fighting for his political future after suffering a humiliating by-election defeat. asserted

Polanski → fight → defeat

Senior Green figures cast doubts over his position as leader after he lost to Labour in the battle for Sir Keir Starmer's former seat of Holborn and St Pancras. asserted

he → cast → Holborn

The loss topped off a chaotic week for the leader in which the party passed a controversial 'Zionism is racism' motion, effectively calling for the destruction of Israel. asserted

Zionism → top → Israel

The chairman of the Jewish Greens called on Mr Polanski to resign yesterday, accusing him of a 'dereliction of duty'. asserted

chairman → call → duty

And Robin Harper, the former Scottish Green leader, told the Mail Mr Polanski is a 'chancer' who must step down. asserted

who → tell → Mail

A small number of activists passed the motion after Mr Polanski asked members to leave their conference in Brighton last weekend to support his doomed by-election campaign. asserted

Polanski → pass → campaign

Defending leaving, and so dodging the vote, he insisted to the BBC's Nick Robinson he had been fighting 'one of the most important elections in our recent history and people in that election said they wanted to see me on the ground'. asserted

they → defend → ground

Brighton Green MP Sian Berry, however, revealed 'many of us' had been 'persuaded' to hide concerns over the motion while their leader was chasing votes in north London. asserted

leader → reveal → London

In a statement, Ms Berry wrote: 'On the motion, I voted and argued against it because I felt it needed serious amendment, and if not then sending back for more dialogue or voting down. asserted

it → write → dialogue

But the clash of conference with an exciting and mobilising by-election campaign meant many of us were persuaded not to campaign publicly for these ends. asserted

many → mobilise → ends

The Green Party leader's humiliating defeat has brought into question his political future Labour's Sagal Abdi-Wali celebrates her by-election victory. asserted

Wali → bring → victory

Mr Polanski insisted he could defeat Labour as polls closed on Thursday, but he eventually trailed in more than 3,000 votes The Greens have been reported to both the police and the equalities watchdog over anti-Semitism concerns after the motion passed. uncertain

motion → insist → concerns

Mr Polanski insisted he could defeat Labour as polls closed on Thursday, but he eventually trailed in more than 3,000 votes behind Labour's Sagal Abdi-Wali. uncertain

he → insist → Wali

Mr Polanski insisted yesterday he was 'absolutely' going to remain as leader following the defeat. asserted

he → insist → defeat

But Green Party grandees and veterans yesterday raised doubts. asserted

grandees → raise → doubts

Speaking to the BBC's Newsnight, Caroline Lucas, a former MP and leader of the Greens, said 'he should have been there and he should have voted' in Brighton, adding: 'I would have hoped that he would have really been a very strong critic of this motion because the motion was flawed from top to bottom in my view. asserted

motion → speak → view

Asked if he should carry on as leader, she said: 'Let's see what happens in the coming days and weeks.' asserted

what → ask → days

Mr Polanski, who is of Jewish descent, told BBC Radio 4's Today programme that he would not have voted for the 'Zionism is racism' motion because there were 'aspects of it that I don't think are OK'. asserted

I → tell → it

But asked five times if Israel had a right to exist, he declined to answer. asserted

he → ask → right

Refusing to say yes or no, he said: 'I want to see equal rights for Israelis and Palestinians, but at the moment Palestinians don't have equal rights. asserted

Palestinians → refuse → rights

And he suggested he would support the policy being overturned or amended 'at the earliest possible opportunity'. uncertain

policy → suggest → opportunity

He → top → place

'I was surprised, and to tell the truth, slightly shocked by how quickly he rose up the ranks; how people seemed to jump aboard his ship without thinking anything other than that he's a brilliant speaker. asserted

he → tell → anything

Defence Secretary Wes Streeting added: 'The Greens' position seems to be that racism against Jewish people is OK because they oppose Israel. asserted

they → add → Israel

I admire the Green members fighting to get their party back, but we should be in no doubt about the moral failure of their leaders. asserted

we → admire → leaders

It is shocking and must be opposed. asserted

It → oppose → ?

And Steve Reed, housing secretary under Mr Starmer, told the Daily Mail: 'Zack Polanski has facilitated the anti-Semites coming in and taking over his party.' asserted

Semites → tell → party

YouGov polling last night revealed a third of Britons now believe Mr Polanski should step down as leader, with just a fifth backing him to remain. asserted

fifth → reveal → him

A Green Party spokesman said: 'Unlike other parties, the Green Party does not whip MPs and is not top-down in nature. asserted

Party → say → nature

No one issues instructions to prominent members on internal matters. asserted

one → issue → matters

'There were always going to be many views and discussions about how to handle campaigning and communications around this motion and each member can and does speak for themselves freely.' asserted

member → be → themselves

Polanksi on the ropes: Green Party leader is left fighting for his political future after humiliating by-election defeat

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