Makerfield by-election to decide Burnham's path to a Labour leadership bid

Voters in Makerfield go to the polls on 18 June 2026 in a by-election that could reshape the Labour leadership contest. The vacancy was created when MP Josh Simons resigned in May to clear a path for Andy Burnham, the Mayor of Greater Manchester, in an unusual move that has drawn attention well beyond the constituency itself.

Burnham needs a seat in the Commons to mount a challenge to Sir Keir Starmer, because party rules require leadership candidates to be sitting Members of Parliament. The by-election is therefore being read not simply as a local contest but as a potential staging post in a wider struggle over the direction and leadership of the governing party.

Burnham, a former Cabinet minister who left Westminster to become mayor, has built a distinct profile in regional politics and has long been seen as a possible future leader. His return to the national stage, if successful, would inject a new and unpredictable element into a Labour Party already grappling with internal tensions.

A safe seat turned battleground

Makerfield has been held by Labour since 1983, but the contest is far from a formality. At the 2024 general election Labour took 45.2 per cent to Reform UK's 31.8 per cent, and in May's local elections Reform swept all eight council wards in the constituency with roughly half the vote. That local result has transformed expectations and turned what might once have been a routine hold into a genuine test.

The seat sits in the kind of post-industrial constituency where Labour's traditional dominance has come under sustained pressure from Reform UK, which has made significant inroads into former Labour heartlands. The by-election therefore carries a double significance, as both a personal contest for Burnham and a barometer of Labour's standing in the communities it has long taken for granted.

Burnham faces Reform UK's Robert Kenyon, a local plumber and councillor, alongside candidates from the Conservatives, Liberal Democrats, Greens and smaller parties. Reform leader Nigel Farage has framed the contest as an underdog fight, seeking to portray his candidate as a local outsider taking on a national political figure.

“The Plucky Plumber taking on Open Borders Burnham.”

— Nigel Farage, Reform UK leader

The stakes for Burnham

For Burnham, the calculation is finely balanced. A comfortable win would establish him in the Commons and strengthen his position as a potential challenger, giving substance to speculation about his ambitions. A narrow result, or worse a defeat, would be a serious setback, undermining the very rationale for the by-election and handing his critics a powerful argument.

The decision to engineer a vacancy specifically to provide him with a seat has itself attracted scrutiny, with some questioning the propriety of the arrangement and others pointing to the risks of staking so much on a single contest. The unusual nature of the manoeuvre has ensured that the result will be parsed for what it says about both Burnham personally and the state of the party.

• Polling day in Makerfield is 18 June 2026
• The vacancy was created by the resignation of MP Josh Simons
• Andy Burnham needs a Commons seat to challenge for the Labour leadership
• Reform swept all eight council wards in the seat in May's local elections
• It is the first by-election triggered to provide a seat for a non-MP since 1965

Historical echoes

It is the first by-election triggered specifically to provide a seat for a figure outside Parliament since the 1965 Leyton contest, underlining the unusual stakes for the governing party. That earlier episode is a cautionary tale, having delivered an unexpected and damaging result, and commentators have been quick to draw the parallel as a warning about the risks of such manoeuvres.

“The history of safe seats vacated for a particular candidate is not a reassuring one for those who plan them.”

— A political historian

What happens next

The outcome will reverberate well beyond Makerfield. A strong Burnham victory could embolden those urging a change at the top of the party and accelerate the pressure on Sir Keir Starmer, while a poor result could deflate the challenge before it has properly begun and reinforce the Prime Minister's grip, at least for now.

For Labour as a whole, the contest is also a measure of its ability to hold off Reform UK in the kind of seat it once considered impregnable. Whatever the result, the by-election is likely to be remembered as a pivotal moment in a turbulent chapter of the party's history, and its consequences will shape the leadership question for months to come.