Things are not looking good for the party PM (Picture: PA)

Yet another Tory MP has submitted a letter calling for a vote of no confidence in Boris Johnson.

John Stevenson, who represents Carlisle, said he is ‘deeply disappointed’ in the prime minister and has called for him to step down.

It makes him the 28th MP to publicly call for him to resign.

In a statement posted on social media this afternoon, Mr Stevenson said he had recently called on the prime minister to put himself forward for a confidence vote to ‘draw a line” under recent controversies.

‘Sadly, the Prime Minister appears unwilling to bring matters to a head and submit himself to such a vote,’ he said.

‘Therefore, the only option is for the Conservative MPs to facilitate a vote of confidence.

‘I have already taken the appropriate action.’

pic.twitter.com/evBa0uJvEu

— John Stevenson MP (@John4Carlisle) May 31, 2022

It comes after former Cabinet minister Dame Andrea Leadsom criticised Boris Johnson for his ‘unacceptable failings of leadership’ over lockdown parties in Downing Street.

In a letter to her constituents, she said the ‘extent and severity’ of the rule-breaking in No 10 exposed in the Sue Gray report meant it was ‘extremely unlikely’ the senior leadership did not know what was going on.

‘The conclusion I have drawn from the Sue Gray report is that there have been unacceptable failings of leadership that cannot be tolerated and are the responsibility of the Prime Minister,’ she said.

In the message, which was shared on social media, she stopped short of directly calling on Mr Johnson to resign and did not say whether she had submitted a letter calling for a no confidence vote.

Dame Andrea concluded however by saying: ‘Each of my Conservative colleagues and I must now decide individually on what is the right course of action that will restore confidence in our Government.’

Under party rules, the chairman of the backbench 1922 Committee Sir Graham Brady must call a vote of confidence in Mr Johnson’s leadership if 54 Tory MPs – 15% of the parliamentary party – submit a letter calling for one.

So far, more than 25 MPs have publicly called on the Prime Minister to stand down – although not all of them have said whether they have written to Sir Graham requesting a no confidence vote.

However, it is also widely believed in Westminster that a number of others have put in letters without declaring their intentions amid speculation the tally is approaching the total needed to trigger a vote.

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