Burnham promised devolution in his first major speech since launching his No 10 bid.

Andy Burnham will later deliver his first major policy speech since his bid to become Prime Minister, unveiling the “No 10 North” plan.

Speaking in Manchester, Burnham said the body is expected to be responsible for driving growth in “every country and region of the UK” as it promises to deliver devolution in the government’s programme.

It sets out proposals for a “10-year mission” to raise living standards to “get Britain back where it used to be”, as well as youth employment.

Burnham is expected to become prime minister on July 20 if no other Labor MP puts himself forward as leader.

Opposition parties have been called on to outline their plans, who they intend to appoint to the cabinet and whether or not they will deviate from Labour’s 2024 manifesto.

In Monday’s speech, Burnham is expected to call on the government to “give Britain the constituency it needs” and why public trust in politics is so low.

He says decision-making “must be pushed down to the states and local communities” and that “good progress will be made in every postcode”.

Burnham has announced that he will stand by the fiscal rules he will replace if Chancellor Rachel Reeves becomes Prime Minister.

These rules stipulate that day-to-day government spending will be paid for by tax revenue, not debt, and a commitment by this Parliament to see debt fall as a share of national income by the end of 2029-30.

Pressures on government budgets and high borrowing costs mean that Burnham or any future prime minister will have little financial room to implement policy objectives.

At a conference in London on June 25, Reeves urged Burnham to stick to her economic approach, saying it was “beginning to bear fruit” and that she supported the “fiscal dividend” approach.

But some Labor MPs on the left of the party have called for Reeves to scrap the legislation on his own to allow for more spending.

He is reportedly considering Ed Miliband, David Miliband, Wes Streeting or Shabana Mahmoud as Reeves’ replacements.

Burnham has pressed for increased defense spending.

The Government is due to publish its Defense Investment Plan (DIP) before appointing a new prime minister to replace Prime Minister Sir Keir Starmer, which will reveal a multi-billion dollar boost.

On Sunday, former Chief of Defense Staff Admiral Sir Tony Radkin promised to increase defense investment to 3.5% of GDP by 2035 if Burnham becomes Prime Minister.

Asked what his advice to Burnham would be, he told the BBC’s Sunday with Laura Queensberg programme: “It’s to keep our country safe, you know you have an extraordinary responsibility – so you’re like a wartime prime minister now.”

“And that means you need to invest in what really protects us.”

Responding to the upcoming speech, Conservative Party Chairman Kevin Hollinrack said Burnham’s big plan was to consolidate power among politicians rather than introducing welfare reforms, cutting taxes or “funding the defense our country so desperately needs.”

He continued: “Devolution, more committees, more procedures, the politics of distraction from the Labor Party is deliberately avoiding the questions that are being asked.”

A spokesman for Reform UK said the speech’s previews were “a lot of words for concrete concrete changes”, adding: “It’s clear Burnham has taken a leaf out of Starmer’s book – all talk, no action.”

Liberal Democrat leader Sir Ed Davey warned Burnham had a very short window to change this government as the country was “impatient for change”.

“People have heard this kind of talk before because they’re so angry that nothing will change – Burnham shouldn’t repeat that mistake,” he said.