Prime Minister Boris Johnson has reportedly said it will take an army of tanks to get him out of Downing Street.
15 MPs have publicly handed in letters calling for a vote of no confidence in the Prime Minister and many more are believed to have done so privately.
There is deep unrest over the Prime Ministers' involvement with and handling of parties in Downing Street during lockdown - as well as his slur over Sir Keir Starmer.
The PM hit out at Sir Keir for 'failing to prosecute Jimmy Savile' when he was the Director of Public Prosecutions.
According to The Times, one senior adviser said: "He’s making very clear that they’ll have to send a Panzer division to get him out of there"
If 54 MPs call for a vote of no confidence then the Conservative Party would have to hold one, putting the Prime Minister's job at risk.
The number of letters submitted is believed to be between 35 and 45 although some say it is already more than 50.
And The Times claims three sources say Carrie Johnson has privately said her husband should quit.
A new book about the life of Carrie Johnson will be published this week.
Fiver senior aides in Downing Street have resigned in the last few days and are now being replaced.
