Quick Answer
Labour MP Josh Simons has resigned his Makerfield seat to clear the path for Greater Manchester Mayor Andy Burnham to return to Parliament. The by-election has been scheduled for Thursday, June 18, 2026, and Burnham has been approved by Labour's NEC to stand for selection.
Burnham, often called the King of the North, served as an MP and Cabinet minister before becoming Mayor of Greater Manchester in 2017. His policy stance leans further to the traditional left of Keir Starmer, and recent polls suggest he would beat Starmer head to head among Labour members by roughly 61 to 28 percent.
If Burnham wins Makerfield in June, he becomes the most credible internal challenger to Starmer's leadership in years.
Where is Makerfield and why does it matter?
Makerfield is a parliamentary constituency in the Metropolitan Borough of Wigan, Greater Manchester. It includes towns such as Ashton-in-Makerfield, Hindley and Orrell, with a strong post-industrial Labour tradition.
Historically it is a deep red seat, previously held by Yvonne Fovargue and most recently by Josh Simons, who is closely associated with the influential think tank Labour Together. That solid majority is exactly what makes it useful as a vehicle to bring Burnham back to Westminster.
Why did Josh Simons resign?
Simons held a comfortable majority and was regarded as a rising backbench voice. His resignation is openly tactical: by stepping aside, he creates an immediate vacancy in a safe Labour seat that Andy Burnham can contest.
Labour's National Executive Committee has already approved Burnham as an eligible candidate for selection, and a by-election writ has been moved for June 18, 2026.
Who is Andy Burnham?
Andy Burnham is the Mayor of Greater Manchester, a role he has held since 2017 and won twice with very large majorities. Before that he was the Labour MP for Leigh from 2001 to 2017 and served in Cabinet under Gordon Brown, including as Health Secretary.
His political brand is built on regional inequality, public ownership of buses and rail, and a more generous social care settlement. Among Labour members he is consistently more popular than the Westminster front bench.
| Burnham policy area | Position |
|---|---|
| Transport | Public ownership and franchising, expanded across England |
| Social care | National Care Service funded at scale |
| Devolution | Stronger powers for English regions and city mayors |
| NHS | More state delivery, less reliance on private contracts |
What does this mean for Keir Starmer?
The Makerfield by-election does not, on its own, remove Starmer. It does something more dangerous for him: it puts a high profile alternative leader inside the parliamentary party at exactly the moment his authority is wobbling.
If Burnham wins comfortably and arrives at Westminster as a sitting MP, the practical barriers to a leadership challenge fall away. The numbers among the membership already favour him.
How competitive will the by-election be?
Burnham is the heavy favourite, but a by-election in 2026 is rarely a simple coronation.
- Reform UK: Recent local council results in places like Hindley Green show Reform performing strongly, which could squeeze Labour's traditional working class vote.
- Green Party: The Greens are pouring resources into Makerfield, hoping to peel off voters frustrated by Labour's softer climate stance.
- Local Labour ground game: Burnham can lean on regional heavyweights such as Lisa Nandy in Wigan and Lucy Powell in Manchester Central.
What to watch on June 18
- The size of Burnham's majority compared with Simons' previous result.
- The Reform UK vote share, especially in the more deprived parts of the seat.
- Turnout: low turnout favours challengers, higher turnout usually favours the Labour machine.
- Burnham's victory speech, which will be parsed for any leadership signals.
The bottom line
The Makerfield by-election on June 18, 2026 is less about one constituency and more about the future of the Labour leadership. If Andy Burnham walks into Westminster with a strong majority, the pressure on Keir Starmer will not just continue, it will intensify.
Andy Burnham's Political Profile
Andy Burnham has served as Mayor of Greater Manchester since 2017, winning a third term in 2024. Before mayoral office he held cabinet roles including Health Secretary and ran twice for the Labour leadership. His political brand blends practical regional delivery with national policy ambition.
The Makerfield Constituency
Makerfield sits in Greater Manchester's wider footprint and has historically been a safe Labour seat. A by election there carries symbolic weight far beyond its size because it tests the party's standing in the regions Labour considers its base.
Why This By Election Matters
- Tests Labour's grip on traditional northern strongholds.
- Offers an early indicator of how voters view the government's record.
- Provides a potential pathway for Burnham to return to Westminster if he chooses.
The Burnham Return Question
Speculation about Burnham seeking a parliamentary seat has persisted for years. A safe Greater Manchester seat would be the obvious vehicle if he wanted to position himself for a future leadership contest. He has publicly downplayed the idea while keeping the option visibly alive.
The Candidates and the Campaign
Labour selected a candidate with strong local roots, while the Conservatives, Liberal Democrats, Reform UK, and the Greens are all contesting. Reform's performance is being watched closely as a barometer of its strength in former Labour areas.
What to Watch on Election Night
- Turnout figures against the previous general election baseline.
- Reform UK's vote share and where it pulls votes from.
- The Labour majority compared to recent national polling.
The National Implications
A strong Labour win consolidates the government's narrative. A reduced majority or surprise upset would feed leadership speculation and force Downing Street to recalibrate its strategy for the next general election cycle.
