Andy Burnham Confirms He Will Challenge Starmer for No 10 — and His Route Back to Westminster Runs Through Reform

Andy Burnham’s return to Westminster was never going to be an ordinary political comeback.

For months, the Greater Manchester mayor had been positioning himself as the man who could rescue Labour from its mounting difficulties. But there was one enormous obstacle: he was not an MP. Before he could challenge Keir Starmer for the Labour leadership, he first had to find a route back into Parliament.

That route eventually opened in Makerfield.

The Labour MP Josh Simons agreed to stand down, creating a by-election that gave Burnham the opportunity he needed. But there was a catch. To turn his political ambitions into reality, Burnham first had to defeat Reform UK in a constituency where the party had demonstrated formidable strength.

Suddenly, a local by-election became something much bigger.

It became a referendum on Burnham himself.

Could he prove that Labour still had a politician capable of winning back working-class voters?

Could he defeat Reform in one of its strongest potential constituencies?

And, perhaps most importantly, could he use that victory to establish himself as the alternative to Starmer?

Burnham did not attempt to hide the national significance of the contest.

When he launched his Makerfield campaign, he described it as a “change byelection” and declared that a vote for him would be a vote to change Labour. Although he initially stopped short of explicitly saying that he wanted to replace Starmer, his message was unmistakable. He was offering voters not simply a local MP, but a different political direction for the Labour Party.

That was a remarkably bold move.

Starmer, meanwhile, made clear that he had no intention of simply stepping aside.

He said he wanted to fight the next general election and insisted that he would continue serving the people who had elected him. In other words, the Labour leadership contest that many expected to happen quietly behind closed doors was becoming an increasingly open confrontation.

For Burnham, however, the first battle was not in Westminster.

It was in Makerfield.

The constituency that could make or break Burnham

Makerfield was a particularly appropriate battlefield.

The constituency has traditionally been Labour territory, but its politics have changed dramatically. At the 2024 general election, Reform came close enough to make the seat highly competitive, and at the subsequent local elections Reform performed exceptionally strongly in the Wigan area.

That gave Nigel Farage an opportunity.

Reform presented its candidate, local plumber Robert Kenyon, as the ordinary working man taking on an established political heavyweight.

Burnham was portrayed as the career politician attempting to use a northern constituency as a stepping stone back to Westminster.

The symbolism was obvious.

On one side stood Burnham, a former cabinet minister, former Labour leadership candidate and high-profile mayor.

On the other stood Reform, determined to demonstrate that Labour’s old northern heartlands were no longer guaranteed territory.

Farage understood the stakes perfectly.

If Reform could defeat Burnham, it would not simply win a parliamentary seat. It would potentially destroy the political narrative surrounding Burnham before it had even begun.

A defeat would make it extraordinarily difficult for him to challenge Starmer.

A victory, by contrast, could transform him into Labour’s most dangerous internal rival to the prime minister.

That is why Burnham’s campaign was fought with such intensity.

Burnham’s bigger promise

Burnham’s message was deliberately broader than Brexit or party politics.

He argued that Britain needed a new economic settlement and that places such as Makerfield had been neglected by Westminster for too long.

His campaign focused on the cost of living, rents, bills, transport and the distribution of government investment. He also promised to redirect significant sums of public money towards council housing rather than private developers if he became prime minister.

The political strategy was clear.

Burnham wanted to turn the election into a choice between two visions of Britain.

Reform’s vision was centred heavily on immigration, taxation and opposition to what it regards as an out-of-touch political establishment.

Burnham wanted the election to be about economic fairness, regional inequality and restoring Labour’s relationship with working-class communities.

That was crucial because he could not afford to fight Reform solely on its own territory.

If the campaign became entirely about immigration, Brexit and cultural issues, Reform would have had a natural advantage.

Burnham instead attempted to redefine the contest.

His argument was essentially this:

The reason voters had turned away from Labour was not because they had suddenly stopped being Labour voters.

It was because they no longer believed Westminster worked for them.

And if Labour changed direction, he argued, those voters could be won back.

That became the foundation of his leadership pitch.

The gamble paid off

In the end, Burnham won.

And he did not merely scrape across the line.

He secured roughly 54% of the vote and a majority of 9,231, nearly twice the majority enjoyed by his predecessor. Crucially, his performance demonstrated that Labour could defeat Reform in a constituency where Reform had been expected to be highly competitive.

The political consequences were immediate.

Burnham was no longer simply a mayor contemplating a return to Westminster.

He was an MP.

And, more importantly, he had won the argument he had built his campaign around.

He had claimed that he could take on Reform.

He had claimed that Labour could reconnect with working-class voters.

And he had demonstrated that he could win.

That made his challenge to Starmer considerably more credible.

Before Makerfield, Burnham’s critics could simply say that he was an ambitious politician speaking from outside Parliament.

After Makerfield, that argument became much harder to sustain.

But defeating Starmer is another matter

Winning a by-election is one thing.

Becoming prime minister is something entirely different.

Under Labour’s rules, challenging a sitting leader requires substantial parliamentary support, including nominations from a significant proportion of Labour MPs as well as support from local party organisations or affiliated bodies.

So Burnham’s next challenge is not winning voters.

It is winning MPs.

That may prove considerably more complicated.

Some Labour MPs will see Burnham as the politician capable of rescuing the party.

Others may fear that replacing Starmer would create even greater instability.

And there are likely to be competing leadership ambitions.

Wes Streeting has already emerged as an important figure in the internal debate, while other Labour politicians could potentially enter the contest.

Indeed, reports suggested that Streeting’s supporters wanted a leadership contest even after Burnham’s Makerfield victory.

Burnham therefore cannot assume that a successful challenge to Starmer automatically means a coronation.

He may have to fight for the leadership.

And that could produce a fascinating ideological contest.

What would a Burnham Labour Party look like?

This may ultimately be the most important question.

Burnham has repeatedly presented himself as a politician willing to move Labour towards the voters it has lost.

His message is less about traditional Westminster Labour politics and more about working-class communities, regional inequality and the cost of everyday life.

During his Makerfield campaign, he promised to change Labour so that it could regain the trust of people who had abandoned the party. He also advocated a stronger role for the state in housing and economic development.

That could represent a substantial shift.

It would not necessarily mean a return to the Labour left of the Corbyn era.

Burnham’s political identity is more complicated than that.

He is economically interventionist but also deeply focused on regional devolution. He wants stronger public services while presenting himself as pragmatic rather than doctrinaire.

His political model is heavily influenced by Greater Manchester.

The question is whether what worked in Manchester can be translated into a national government.

That is a much harder task.

Greater Manchester is one region.

Britain is an entire country with dramatically different economic interests, demographics and political identities.

A policy that works in Manchester may not necessarily work in Surrey, Cornwall, Kent or rural Lincolnshire.

Burnham will therefore need to demonstrate that his political philosophy is more than a successful regional brand.

Reform remains the threat

There is another reason Burnham’s victory matters.

Reform is not going away.

The party has demonstrated that it can take votes from both Conservatives and Labour. In many former Labour constituencies, particularly in northern England, Reform has become a serious challenger.

Burnham’s entire national strategy depends upon defeating that threat.

Makerfield gave him an important victory.

But a single by-election does not establish a national trend.

The next general election will contain hundreds of constituencies, each with different political dynamics.

Reform will undoubtedly argue that Burnham’s victory was the exception rather than the rule.

Farage can point to the party’s broader electoral strength and insist that Labour cannot simply rely on one high-profile politician to rebuild its support.

That is why Burnham’s performance as an MP will now be closely watched.

If he can turn his Makerfield victory into a wider political movement, his leadership credentials will strengthen.

If Labour continues to struggle despite his presence, the argument becomes more complicated.

Starmer’s problem

For Keir Starmer, the emergence of Burnham represents a serious political headache.

A leadership challenge is always dangerous.

But a challenge from a politician who has just defeated Reform in a former Labour stronghold is particularly awkward.

Starmer cannot easily dismiss Burnham as an irrelevant outsider.

Burnham now has a parliamentary mandate.

He has a clear political identity.

And he can point to a measurable electoral victory.

At the same time, Starmer has his own argument.

He can say that Britain elected Labour under his leadership and that he remains determined to deliver the government’s programme.

He can argue that constant leadership battles would distract from governing.

And he can challenge Burnham to explain exactly what he would do differently.

That last question may prove decisive.

It is relatively easy to promise change.

It is much harder to explain how the change would be paid for.

Burnham’s proposals for housing, public services, regional investment and tax reform will all face scrutiny.

If he wants to spend more, where will the money come from?

If he wants to redistribute resources between regions, who will lose?

If he wants closer relations with Europe, how will he avoid reopening the Brexit divide?

If he wants Labour to take a harder line on immigration, how far will he go?

And if he wants to defeat Reform, what policies will he adopt to win back its voters without alienating Labour’s traditional supporters?

These are not easy questions.

The beginning of a much bigger battle

Burnham’s return to Westminster has therefore changed British politics.

The Makerfield by-election was officially about choosing an MP.

In reality, it became the first major test of whether Burnham could build a national alternative to Starmer.

He passed that test.

His victory was decisive enough to give him political momentum and demonstrate that Reform could be beaten even in a constituency where the party had significant support.

But now comes the difficult part.

Burnham has to turn momentum into power.

He must convince Labour MPs that he can win a general election.

He must convince Labour members that he represents the future rather than a return to the past.

And he must convince millions of voters who have abandoned Labour that his version of the party can actually improve their lives.

The stakes could hardly be higher.

For Starmer, the question is whether he can survive an increasingly organised internal challenge.

For Burnham, the question is whether he can transform one spectacular by-election victory into a path to Downing Street.

And for Labour, the bigger question is what kind of party it wants to become.

The fight between Starmer and Burnham is therefore about far more than two politicians competing for the same job.

It is a battle over Labour’s identity.

A battle over working-class Britain.

A battle over how the party responds to Reform.

And ultimately, a battle over who gets to decide Britain’s political direction for the next decade.

Burnham has already won the first fight.

Now he wants No 10.

The question is whether Labour will give him a clear path — or force him to fight for every step of the journey.