Boris Johnson is set to face a vote of no confidence in his leadership today.
Enough Tory MPs have requested a vote of confidence in Boris Johnson to trigger a contest, chairman of the backbench 1922 Committee Sir Graham Brady has announced.
The vote is set to take place from 6pm to 8pm tonight.
Sir Graham Brady, chairman of the 1922 Committee, said in a statement: "The threshold of 15% of the parliamentary party seeking a vote of confidence in the leader of the Conservative Party has been exceeded.
"In accordance with the rules, a ballot will be held between 1800 and 2000 TODAY MONDAY 6th JUNE - details to be confirmed.
"The votes will be counted immediately afterwards. An announcement will be made at a time to be advised. Arrangements for the announcement will be released later today."
Downing Street has replied to the vote, a No 10 spokeswoman said: "Tonight is a chance to end months of speculation and allow the Government to draw a line and move on, delivering on the people's priorities.
"The PM welcomes the opportunity to make his case to MPs and will remind them that when they're united and focused on the issues that matter to voters there is no more formidable political force."
Brady announced on Monday morning that the threshold had been reached.
What happens next?
At least 50 per cent of Tory MPs must vote "no confidence" for the Prime Minister to lose.
But even if Johnson survives the vote on Monday evening, his leadership could be fatally undermined if a significant number of MPs vote against him.
How does a Tory leadership contest work?
If Mr Johnson is voted out or forced to resign, a leadership contest to replace him as the head of the Tory Party would take place - although he is likely to remain in post as Prime Minister until a successor is in place.
The contest takes place in two stages.
In the first stage, Conservative MPs put themselves forward as candidates.
All Tory MPs then vote in a series of rounds to reduce the number of candidates until only two remain.
The second stage of the contest sees the two remaining candidates put to a vote of Conservative Party members.
Johnson won the leadership contest in 2019 against Jeremy Hunt, following Theresa May's resignation.
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