Andy Burnham won the Makerfield by-election on 19 June with 24,927 votes — nearly 55% of the total — defeating Reform UK's Robert Kenyon by more than 9,000 ballots and returning to the House of Commons after a decade-long absence [2][3][4]. The seat became vacant after Josh Simons, the sitting Labour MP, resigned to allow Burnham to stand [6][7]. The result places Burnham, the Mayor of Greater Manchester, in a position to formally challenge Keir Starmer for the Labour leadership [8][11].
Burnham used his victory speech to frame the result as a mandate for a different direction. "Everyone knows that politics is not working. Everyone can feel that the country isn't where it should be. Tonight could — just could — be the turning point," he said [2][5]. He warned his own party directly: "I do say to my own party, this is a final chance to change. There will be no second chance" [4][10]. He called for "a new politics based on unity and hope, turning away from the path that takes us to a divisive, dark politics of the kind we see in the United States" [5][13]. Cabinet minister Lisa Nandy described the win as "history in the making" and said Burnham's return to the government's "top team" would put Labour in a strong position [8].
Burnham also sought to address scepticism about his commitment to the constituency, pledging that Makerfield would "never be a stepping stone to me — but instead will be my touchstone" and proposing a "Makerfield test" to ensure policies benefit neglected communities [8][13]. He said voters had told him on the doorstep that they felt "neglected" and that "the country works for other people and other places but not for here" [8].
Starmer rejected calls to resign. Speaking at the G7 summit in France, he said: "I will fight if there's a challenge. We won a significant general election result in 2024, with a mandate to bring about change. I'm not going to walk away from that" [7]. He offered Burnham a "big role" in government, framing a leadership contest as a "bad thing for the country" [2][4]. Tagesschau reported that Starmer has repeatedly pointed to his large 2024 parliamentary majority as the basis for continuing in office [12].
Wes Streeting, the former Health Secretary who resigned from Cabinet, positioned himself as a parallel threat to Starmer's leadership. He stated: "Where we need vision, we have a vacuum" [7]. Streeting said Starmer should be given "space over the weekend" to consider his future but indicated he was prepared to force a contest if the prime minister did not step aside [4]. Infobae reported Streeting saying: "Tendrá que haber una contienda, y yo estaría preparado para ello" (There will have to be a contest, and I would be prepared for it) [9].
The by-election result carried a policy dimension beyond the leadership question. Several outlets noted Burnham's support for nationalisation of public services and his criticism of what he called four decades of failed neoliberal economics [10]. His central policy promise was to scale his "Manchesterism" governance model — the devolution framework he built in Greater Manchester — to the national level [9]. Infobae reported that Burnham's allies made clear he was not interested in a Cabinet position [9].
Professor Rob Ford of the University of Manchester said "the pressure on Starmer will be very hard to resist" now that Burnham is back in Parliament [7]. Ford argued that Burnham's ability to defeat Reform UK in a seat the party had targeted gave him a renewal message no other Labour figure could match: "El mensaje que puede transmitir es: 'Nadie más podría haber ganado ese escaño. Yo lo gané. Aporto algo único'" (The message he can convey is: 'No one else could have won that seat. I won it. I bring something unique') [9].
Professor John Curtice, the BBC's lead elections analyst, offered a more cautious assessment. He noted that Conservatives, Liberal Democrats, and Greens collectively received no more than 3% of the vote, meaning Burnham benefited from a near-total consolidation of anti-Reform support [13]. Curtice said Burnham "was riding two horses at once" — appealing to traditional Labour voters while also attracting those who "wanted to see the back of Keir Starmer" — and questioned whether that dual appeal could survive once Burnham held power himself: "Once he's his own man, he's not going to be able to campaign against himself in the way he's campaigned against Keir Starmer" [13].
A Conservative Party spokesperson called the result "disastrous" for Reform UK, noting that Makerfield was one of Reform's top target seats nationally and that the party "failed to win" despite heavy investment [13]. The spokesperson predicted Labour would now be "consumed by Labour's internal politics rather than governing" [13].
Not all Makerfield residents shared Burnham's framing. BBC News reported that the community was divided over whether Burnham was a genuine local champion or an outsider using the seat as a platform [21]. Focus group research by Lord Ashcroft found participants saying "His heart's in Manchester" and "It's a stepping stone for him," with some expressing resentment over the backroom arrangement that created the vacancy [22]. Tagesschau's pre-election reporting captured a voter named Darren who said he would switch from Labour to Reform UK: "Da kommen zu viele Illegale rüber zu uns" (Too many illegals are coming over to us), citing frustration over migration and perceived taxpayer costs [14]. Labour MP Barry Gardiner, who campaigned for Burnham in Makerfield despite being aligned with Starmer's faction, acknowledged the situation was unusual but said the pace of change since the 2024 election had not met people's expectations [14].
The Guardian reported that the NASUWT teaching union's general secretary, Matt Wrack, had publicly backed Burnham ahead of the vote as Labour's best chance of beating Reform [24], while the GMB union declined to support him over disagreements on oil and gas licensing policy [23].
Streeting has indicated he could move to trigger a formal leadership contest as early as next week [8]. Burnham has not yet announced a formal challenge. The Greater Manchester Combined Authority has already set a prospective date for a mayoral by-election should Burnham vacate the post [25].