Boris Johnson is set to face a vote of confidence in his leadership later today which could see him ousted as Prime Minister.
Conservative MPs will get a chance to have their say on Johnson after he was told by the chairman of the 1922 Sir Graham Brady on Sunday night about the vote.
In order to oust the PM, however, the rebels will need 180 MPs, and allies of Johnson made clear he is determined to fight to stay on.
Speaking after the announcement, Health Secretary Sajid Javid told Sky News: "If there is (a vote) the Prime Minister will stand and fight his corner with a very, very strong case."
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."
Here's all you need to know about the vote:
What are the rules?
A total of 54 letters of no confidence from Tory MPs, 15% of the parliamentary party, were needed to trigger the vote.
The chairman of the 1922 Committee of backbench MPs has received a steady stream of letters in recent days as Tories spent time in their constituencies consulting local parties about their position.
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.
What time is the vote?
Conservative MPs will vote on the Prime Minister's future between 6pm and 8pm tonight (Monday, June 6).
The result of the vote will be announced shortly.
Where can I watch the vote?
The lead up to the vote and the aftermath will be broadcast on all the news channels, including the BBC News Channel and Sky News.
The Daily Record Politics team will be following the vote closely. You can get all the latest in our live blog.
How does the leadership contest work?
If Boris 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.
To sign up to the Daily Record Politics newsletter, click here.
