As the United Kingdom prepares for local elections across 136 English councils on May 7, Keir Starmer faces what may be the biggest test of his premiership since he took office in July 2024. With more than half of the 5,000 contested seats currently held by his Labour Party, the vote is widely framed as a public referendum on Starmer’s leadership — one that could leave his political career hanging in the balance.
Starmer enters the election cycle facing a perfect storm of headwinds: a stagnating national economy exacerbated by fallout from the US-Israeli military campaign against Iran, plummeting Labour poll numbers, and personal approval ratings that hit historic lows for a sitting prime minister. The right-wing populist party Reform UK, led by veteran campaigner Nigel Farage, has led national opinion polls for more than a year and is positioning the May elections as a breakthrough opportunity to seize control of local authorities. Recent polling projections suggest Reform could capture as many as 17 councils and claim up to 1,500 council seats, in what would be a landmark upset for the insurgent right.
But the threats to Labour do not end on the right of the political spectrum. The party is facing a coordinated, multi-pronged challenge from the left that experts say could split its traditional base and deliver key seats to anti-establishment opponents.
The Green Party, led by Zack Polanski since mid-2024, has surged in popularity, drawing overwhelming support from young voters across the UK. The party proved its growing electoral strength in a shocking February by-election victory in Greater Manchester’s Gorton and Denton constituency, where Green candidate Hannah Spencer flipped a seat long held by Labour, overturning a previous Labour majority of more than 13,000 votes and outpacing Reform to claim the win.
Alongside the Greens, the new left-wing political movement Your Party has emerged as a major contender, built from the Independent Alliance of five independent MPs who entered parliament following the 2024 general election. The bloc was formed after four pro-Gaza, anti-establishment Muslim independent candidates unseated sitting Labour MPs in what was widely labeled a political earthquake, alongside former Labour leader Jeremy Corbyn, who won re-election as an independent after splitting with Starmer’s leadership over policy disagreements. After a period of internal infighting that marked its launch late last year, Your Party stabilized following Corbyn’s election as its parliamentary leader in February 2025.
Contrary to Labour’s initial hopes that the Greens and Your Party would split the anti-Labour left vote, the two groups have launched a coordinated electoral offensive across England. Your Party has adopted a targeted strategy focused on endorsing community-backed independent candidates, rather than running a full slate of its own politicians, to maximize the impact of the left-wing challenge.
“All across the country, there will be community independent groups offering an alternative to the despair of Labour and the division of Reform,” Corbyn said in a recent campaign statement. “We are proud to support those candidates and groups standing up for redistribution, inclusion and peace.”
This wave of anti-establishment left politics builds on a trend that first emerged in the 2024 local elections, when Labour lost roughly a third of its vote share in areas with large Muslim populations, with many voters shifting to independent candidates running on pro-ceasefire platforms in Gaza or to Green candidates who adopted similar positions. That momentum carried into the July 2024 general election, producing the parliamentary upset that paved the way for Your Party’s launch.
The ongoing US military campaign against Iran, and the UK government’s decision to allow American forces to use UK military bases to strike Iranian missile sites, has become a major flashpoint for voter anger, particularly among left-leaning and Muslim communities who have long criticized Labour’s support for British and American foreign policy in the Middle East. Your Party confirmed this week that local council divestment from entities linked to Israel will be a core campaign plank, alongside addressing longstanding underfunding of local authorities and advocating for increased public investment and insourcing of public services.
Your Party announced Thursday it is backing roughly 250 candidates across England, most running as endorsed independents or as members of local community-aligned parties. One of its top targets is the East London borough of Tower Hamlets, currently controlled by Lutfur Rahman’s Aspire Party. A former Labour politician, Rahman was first elected mayor in 2010, but was removed from office in 2015 after being found guilty of electoral fraud and banned from running for office for six years. He reclaimed the mayoralty and council control for Aspire in the 2022 local elections.
With a population that is 39% Muslim — the highest share in the UK — alongside some of the country’s highest poverty rates, Tower Hamlets has become a showcase for left-wing alternative governance. Your Party has labeled the borough a “beacon council,” pointing to Aspire’s policy wins: expanding free school meals to all primary and secondary students, restoring the Education Maintenance Allowance cut by the previous Conservative-Liberal Democrat coalition, and reinstating the Winter Fuel Payment that was eliminated by Starmer’s Labour government.
“In Tower Hamlets, we’ve shown how socialist, redistributive policies can transform lives and provide the hopeful, ambitious alternative needed to take on the far right — something Labour has utterly failed to do,” Rahman said.
East London has emerged as the central battleground for the left-wing challenge. In nearby Redbridge, the local Redbridge Independents group, endorsed by Your Party, is aiming to seize council control. Noor Jahan Begum, a recently elected Redbridge councillor who now serves as Your Party’s spokesperson, said the movement is “taking the fight to Labour in their heartlands.”
“In Redbridge and across the country, people are telling us that they feel let down and abandoned by Labour, outraged by their complicity in genocide and fed up of the status quo,” Begum said. “We are offering something different: a politics rooted in and accountable to our communities, a politics that campaigns for the social transformation people are crying out for.”
The challenge has already sparked pushback from senior Labour figures: last week, local MP and Health Secretary Wes Streeting drew criticism for a campaign letter to Redbridge voters that urged residents to vote Labour to stop the borough from “becoming a rotten Borough like Tower Hamlets.” Vaseem Ahmed, leader of the Redbridge Independents, called the comment an unfair attack on a diverse group of local residents campaigning for change.
In neighboring Newham, another East London Labour stronghold, the local Newham Independents Party has already won multiple recent council by-elections and is mounting a serious challenge to Labour’s majority. Further south in Lewisham, southeast London, former Labour councillor Liam Shrivastava is running as the Green mayoral candidate, with polls predicting no party will win an overall council majority. National projections suggest the Greens could capture up to nine councils overall, including long-time Labour strongholds Hackney and Lambeth in London.
The challenge extends far beyond the capital. In Birmingham, Britain’s second city, where 22% of the population is Muslim and all 101 council seats are up for election, polling shows a coalition of independents and Greens has a strong chance of stripping Labour of its majority. In Newcastle upon Tyne, where Labour currently runs a minority administration and 78 seats are contested, former Labour mayor Jamie Driscoll — now running as a Green candidate — said Greens and independent candidates are on track to take joint control of the council.
Rahman argued that the cross-party alliance between Your Party, local community groups, the Greens, and progressive independents presents a historic opportunity to replace Labour-led councils across the country with administrations accountable directly to local communities. Corbyn framed the upcoming elections as the opening of a broader movement against established political orthodoxy.
“These elections are the beginning of the fightback against austerity, privatisation and fear,” Corbyn said. “People in power underestimate the power of people at their peril — and arrogance in office always comes back to bite you in the end.”