British Prime Minister Keir Starmer is facing mounting pressure to step down after Labour suffered major losses in local and regional elections, triggering a widening leadership crisis within the ruling party.

According to British media reports, more than 70 Labour MPs have privately urged Starmer to resign, while several senior cabinet ministers are said to have raised concerns about his ability to lead the party into the next general election scheduled for 2029.

The pressure intensified on Monday after four ministerial aides resigned and influential figures within Labour openly questioned whether Starmer could recover politically from the party’s poor electoral performance.

Reports suggested that senior ministers, including Foreign Secretary Yvette Cooper and Interior Minister Shabana Mahmood, encouraged Starmer to consider an orderly leadership transition following Labour’s setbacks across England, Scotland and Wales.

Under Labour Party rules, 81 MPs are required to formally trigger a leadership contest.

Despite the growing rebellion, Starmer rejected calls for his resignation and vowed to remain in office.

“I know I have my doubters, and I know I need to prove them wrong, and I will,” Starmer told party supporters during a speech in London.

Labour’s difficulties were highlighted by heavy council election defeats across England and significant setbacks in Scotland and Wales. In a historic blow, the party lost control of the Welsh parliament to Plaid Cymru for the first time since 1999. Meanwhile, Reform UK and the Green Party made substantial gains at Labour’s expense.

Several departing aides publicly criticised Starmer’s leadership.

Joe Morris, a parliamentary aide to Health Secretary Wes Streeting, said it had become “clear that the prime minister no longer has the trust or confidence of the public to lead this change”.

Tom Rutland, an aide to Environment Secretary Emma Reynolds, argued that Starmer had “lost authority” within the parliamentary party and would be unable to regain it.

Another resigning aide, Melanie Ward, said the election results demonstrated that Starmer had “lost the confidence of the public”, while Naushabah Khan called for “new leadership” to rebuild trust with voters.

Starmer came to power in July 2024 following a landslide Labour victory that ended 14 years of Conservative rule. However, his government has since faced criticism over sluggish economic growth, rising living costs and a series of political controversies.

Attempting to steady his leadership, Starmer promised a “complete break” from previous policymaking and pledged stronger measures on economic growth, energy reforms and relations with Europe. He also reiterated plans to nationalise British Steel and argued that Brexit had left Britain “poorer, weaker and less secure”.

“Our response this time must be different, a complete break. We must make this country stronger and take control of our economic security,” he said.

Speculation over potential successors has intensified in recent days, with Wes Streeting and former deputy prime minister Angela Rayner frequently mentioned as possible challengers.

Nevertheless, Starmer insisted he would not resign voluntarily. “I’m not going to walk away,” he said.