Andy Burnham is back in the House of Commons after eight years away, and the road to Downing Street he has been edging toward since January is now open. Here is what happened in Makerfield, what the numbers actually show, and what comes next for Keir Starmer.
The result
Andy Burnham won the Makerfield by-election in the early hours of Friday 19 June 2026, securing 24,927 votes, 54.8% of the total, to beat Reform UK’s Robert Kenyon by more than 9,000 votes. Kenyon finished on 34.5% with 15,696 votes. Rebecca Shepherd of Restore Britain came a distant third on 6.8%, ahead of the Conservatives’ Michael Winstanley, the Green Party’s Sarah Wakefield, and the Liberal Democrats’ Jake Austin, who between them took less than 4% of the vote.
The result is, on the surface, a comfortable Labour hold. The party’s majority of 9,241 votes (20.3 percentage points) is wider than the 13.4-point margin Labour held at the 2024 general election. Turnout rose to 58.75%, up from 52.4% in 2024, a notable increase for a by-election, reflecting how much national attention the contest attracted.
But the numbers were never really the point. Burnham’s win matters because of what it allows him to do next: stand for the leadership of the Labour Party, and by extension, challenge Sir Keir Starmer for the office of Prime Minister.
How Burnham got here
This by-election did not happen by accident. It is the product of five months of escalating manoeuvring inside the Labour Party, and it is worth recapping how unusual the sequence has been.
In January 2026, Burnham asked Labour’s National Executive Committee for permission to stand in the Gorton and Denton by-election, triggered by another MP’s resignation. The NEC, including Starmer himself, voted 8 to 1 to block him, citing the cost of a follow-up mayoral election in Greater Manchester. Labour went on to lose Gorton and Denton to the Green Party in February — the party’s first parliamentary by-election loss to the Greens, and a result that intensified questions about whether blocking Burnham had been a strategic mistake.
By May 2026, Labour’s position had deteriorated sharply. The party suffered heavy losses in the May local elections, prompting more than 95 Labour MPs to publicly call on Starmer to resign or set out a departure timetable. Health Secretary Wes Streeting resigned from the cabinet, along with several junior ministers. On 14 May, Josh Simons, the sitting MP for Makerfield, resigned his seat specifically to give Burnham a route back into Parliament. Unlike the Gorton and Denton situation, the NEC this time approved Burnham’s candidacy.
That sequence, a senior backbencher deliberately vacating a safe seat to install a leadership rival, is rare in British politics. It is, in effect, an admission by a significant section of the Labour Party that the only way to resolve the question of Starmer’s leadership was to get Burnham into the Commons and let the party decide.
What Labour’s rules actually require
Under Labour Party rules, only a sitting Member of Parliament can stand for the leadership. That single rule is why Burnham’s eight years as Greater Manchester mayor, however popular, never translated into a formal challenge. Makerfield removes that obstacle.
To trigger a leadership contest, 20% of Labour MPs, roughly 70 of the parliamentary party’s 348 members, must nominate a challenger. Given that more than 95 MPs had already called for Starmer to go before Burnham even won his seat, that threshold is not in serious doubt. The harder question is timing: when Burnham formally declares, and how quickly his nominations are gathered.
A separate and distinct mechanism, a House of Commons vote of no confidence in the government, is a different and much higher bar. That requires either a collapse in Labour’s working majority or significant cross-party cooperation, neither of which is currently in play. Prediction markets have priced the chance of a Commons no-confidence vote by the end of June at under 10%, reflecting how unlikely that specific route is, even amid the internal turmoil.
The realistic path to a change in Prime Minister, in other words, runs through Labour’s internal leadership rules, not through Parliament voting down the government. Britain has changed Prime Minister this way several times in the last decade without a general election, Blair to Brown, Cameron to May, May to Johnson, and twice in 2022 with Johnson to Truss and Truss to Sunak.
Starmer’s position and the polling backdrop
Sir Keir has shown no sign of standing aside voluntarily. He has consistently rebuffed calls to resign since the leadership crisis began in earnest in February, when Scottish Labour leader Anas Sarwar became the most senior party figure to call for him to go. Starmer has argued that a leadership contest would be damaging for the country and has pledged to fight any challenge.
That position has come under sustained pressure for months. Twenty ministers have resigned from Starmer’s government since the 2024 election, with roughly half citing a loss of confidence in his leadership or policy disagreements. A further blow came on 12 June, just six days before Makerfield went to the polls, when Defence Secretary John Healey and Armed Forces Minister Al Carns both resigned over a dispute on military spending plans.
Burnham’s win does not automatically remove Starmer from office. But it removes the single biggest practical obstacle that has stood between the Prime Minister and a credible internal challenge for almost a year.
The most recent Ipsos Political Pulse, conducted in the days immediately before the by-election, found that 25% of British adults named Burnham as their preferred Prime Minister, compared with 12% for Starmer, a 13-point lead that has held consistently in recent polling. Among people who voted Labour at the 2024 general election specifically, 48% view Burnham favourably against 42% for Starmer, while unfavourable ratings run the other way: 34% unfavourable toward Starmer compared with 15% for Burnham.
The same polling found that a Labour Party led by either man currently leads Nigel Farage’s Reform UK in a hypothetical head-to-head, though Burnham’s lead (13 percentage points) is wider than Starmer’s (9 points). That detail matters for the substance of any leadership contest: Burnham’s pitch to Labour MPs is not simply that he is more popular than Starmer personally, but that he represents a stronger defence against Reform specifically in the seats Labour is most at risk of losing.
Reaction across the political spectrum
Burnham used his victory speech to frame Makerfield as a symbol rather than a single result, describing the seat as a future benchmark for whether politics is delivering for places that feel neglected by Westminster.
Wes Streeting, who resigned from cabinet amid the broader leadership crisis and remains a likely rival to Burnham in any eventual contest, has spent recent months positioning himself as the candidate best placed to confront Reform UK directly, repeatedly describing Farage in personal and combative terms during conference and media appearances.
Conservative leader Kemi Badenoch, whose own party finished a distant fourth in Makerfield, used the broader collapse of her party’s vote share in recent contests to acknowledge that Farage’s path to Downing Street is no longer a fringe scenario, telling broadcasters that the political environment remains highly volatile.
Reform UK will treat a second-place finish in a seat it did not previously hold as evidence of continued momentum, even in defeat. The party’s vote share in Makerfield builds on a pattern of growth in formerly safe Labour seats across the North West and Midlands that has defined much of the past year’s local and parliamentary contests.
What happens next
The immediate question is timing. Burnham must be formally introduced to the Commons and take his seat, a procedural formality usually completed within days of a by-election result being declared. From there, attention shifts to whether and when he formally seeks nominations for a leadership challenge, and whether Starmer attempts to pre-empt that by reshuffling his cabinet, announcing new policy positions, or seeking to shore up support among undecided MPs.
Labour’s rules mean a full leadership contest, if triggered, would involve a nominations process, hustings, and a one-member-one-vote ballot of the membership, a process that under normal circumstances takes three to five months, though parties have compressed timelines significantly during periods of acute crisis. Given Burnham’s substantial and consistent lead over Starmer among Labour members in recent polling, a contest that reaches a membership ballot would currently be Burnham’s to lose.
Whether it gets that far depends on decisions still to be made in the coming days and weeks, both by Burnham and by the more than 95 MPs who have already called for change at the top of the party. Makerfield has not settled the question of who leads the Labour Party into the next general election. It has simply made that question impossible to avoid.
Sources
• Al Jazeera: ‘Andy Burnham wins key UK by-election, paving way to challenge Keir Starmer’, 19 June 2026
• Wikipedia: 2026 Makerfield by-election; 2026 Labour Party leadership crisis
• Ipsos Political Pulse: ‘Andy Burnham and Wes Streeting’s national favourability ratings fall ahead of the Makerfield by-election’, June 2026
• BBC News: coverage of Gorton and Denton by-election and Labour leadership crisis, February–June 2026
• Polymarket: ‘No-Confidence Vote against Starmer by June 30’ and ‘Starmer out by…?’ prediction markets, June 2026
• The Independent: coverage of Conservative and Reform UK reaction to 2026 local and by-election results
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