Outgoing U.K. Prime Minister Keir Starmer pledged Tuesday(June 23, 2026) to make the transition of power "as easy as possible", as two Labour lawmakers considered whether to challenge frontrunner Andy Burnham amid concern about a coronation.

Mr. Starmer, who announced on Monday (June 22, 2026) he was stepping down after losing the support of his own MPs, has authorised so-called access talks with prospective successors to begin "as soon as possible," Downing Street said.

The PM, in office for almost two years, told his senior Ministerial team during their weekly meeting that he wanted an "orderly" handover and whoever replaces him "to succeed".

"The Prime Minister said he would seek to make the transition as easy as possible, giving his full support to whoever followed in his footsteps," a government readout of the meeting said.

Labour veteran Mr. Burnham (56) is the overwhelming favourite to replace Mr. Starmer, despite only becoming eligible for the top job after winning a parliamentary by-election last Thursday.

The ex-Manchester Mayor was clapped and cheered as some 200 Labour MPs welcomed him back to parliament after a nine-year absence for his swearing in on Monday (June 22, 2026), hours after Mr. Starmer tendered his resignation.

Mr. Starmer's official spokesman told reporters that meetings between Mr. Burnham's team and senior civil servants could begin before nominations to become Labour leader open on July 9.

Nominations close on July 16 and Burnham could be in 10 Downing Street by the following day if he is unchallenged.

U.K.'s 'best interests'

Former armed forces Minister Al Carns told an event Tuesday (June 23, 2026) that he wanted to hear Mr. Burnham's "vision" for the country before deciding whether or not to stand.

"We'll see where we go from there," he added.

U.K. media reported that government minister Darren Jones was being encouraged to run by some MPs.

A person close to Jones told AFP that he was keeping his options open until Mr. Burnham lays out more detailed plans for government, particularly on the economy, but that he considered a run "very unlikely".

Mr. Burnham is due to begin setting out his policy platform next week with a speech on his economic plans.

Government Minister Nick Thomas-Symonds echoed the views of many Labour lawmakers on Tuesday (June 23, 2026) when he told Sky News that a "swift transition" was in "the best interests of the country".

A contest would last for several weeks and could be bitterly divisive, but some MPs insist forcing Mr. Burnham to win a contest would add legitimacy to his premiership since he would have become prime minister without winning a general election.

The Labour party won a landslide victory at the July 2024 general election and is the biggest party in parliament, meaning its leader automatically has the right to be prime minister.

'Unity now'

Labour MP John Slinger told BBC radio that the public would think "we'd slightly lost our minds if we didn't go through a process where we subject people who aspire to the highest office in the land to completely normal scrutiny".

Fellow backbencher Nadia Whittome also called for a contest, telling the BBC that "candidates setting out their stall transparently" would make Labour and the government "stronger".

Mr. Burnham's path to Number 10 looks clear after his nearest rival for the top job, Wes Streeting, announced on Monday (June 22, 2026) he would not compete for the top job.

Any challenger would likely find it difficult to secure the support of the 81 of Labour's 403 MPs needed to join a race.

"Andy has such a head of steam it would be quixotic," one Labour MP, who asked not to be named, told AFP, adding that a contest would be "hugely expensive and time-consuming".

"We need unity now," he said.