When polls closed in the Makerfield byelection on Thursday evening, the future of British politics hung in the balance – Andy Burnham, the former cabinet minister and mayor of Greater Manchester, was poised to win and launch a bid for 10 Downing Street. The result, announced in the early hours of Friday, confirmed that Burnham had defeated Reform UK's Robert Kenyon, ending his nine-year absence from the House of Commons and setting the stage for a potential Labour leadership challenge against Sir Keir Starmer.
A byelection is a special election held to fill a parliamentary seat that becomes vacant between general elections. In this case, the seat of Makerfield, a constituency just outside Wigan in north-west England, became vacant when Labour MP Josh Simons stood down on 14 May 2026. Simons resigned to allow Burnham – who had been mayor of Greater Manchester since 2017 – to return to Westminster after Labour's poor local election results. Burnham had been a cabinet minister under Gordon Brown and was seen as a figure who could unite the party.
“How Andy Burnham's byelection win in Makerfield challenges Keir Starmer's Labour leadership.”
Makerfield was created in 1983 and has traditionally been a safe Labour seat, but in recent years it has swung towards Reform, the populist party led by Nigel Farage. In the 2024 general election, Simons won with 45.2% of the vote, but Reform increased its share by 18%. In local elections earlier in 2026, Reform took 50.4% of the vote across the constituency's wards. The byelection race became a head-to-head between Burnham and Kenyon, a local plumber. Kenyon faced headwinds over past social media posts described as sexist and lewd, and a hard-right party called Restore Britain, which campaigns for the death penalty and mass deportations, was predicted to take about 7% of the vote, splitting the right-wing vote. Polls ahead of the vote gave Burnham a lead of between three and 12 percentage points.
Burnham's victory in Makerfield matters for UK readers because it could trigger a change in Labour leadership – and potentially a new prime minister. Burnham, often called the 'King of the North' for his strong regional support, has proposed policies such as a land value tax to reform property taxation. His return to Westminster puts immediate pressure on Keir Starmer, who has been Labour leader since 2020 and became prime minister after the 2024 general election. On Wednesday, Starmer suggested he was willing to offer Burnham a role in his government, but Burnham's allies are demanding that Starmer agree to hand over power. The byelection result is also a test of voter sentiment in a post-industrial northern seat that has shifted away from Labour, and it shows how byelections can serve as a barometer for national political trends.
Q: What is a byelection and why does it matter? A: A byelection is a special election to fill a vacant parliamentary seat between general elections. They matter because they can reveal voter mood, test party strategies, and sometimes change the balance of power or trigger leadership contests, as in this case.
Q: Why is Andy Burnham challenging Keir Starmer? A: Burnham, a former culture secretary and Greater Manchester mayor, quit his mayoral role to return to Westminster and challenge Starmer after Labour's poor local election results. His win in Makerfield gives him a parliamentary platform to seek the Labour leadership and potentially become prime minister.
Q: What happens next in the Labour leadership contest? A: With Burnham now an MP, he is expected to push for a leadership election. Starmer has hinted at offering Burnham a senior role to avoid a contest, but Burnham's supporters want Starmer to step aside. The Labour party’s rules will determine the timetable for any such challenge.
The Makerfield result is one of three byelections held on Thursday, alongside Aberdeen South and Arbroath & Broughty Ferry. All eyes will now be on whether Burnham can translate his victory into a successful bid for the Labour leadership – and, ultimately, for Downing Street.