Nicola Sturgeon has claimed Boris Johnson should never have been elected after it was reported the Prime Minister is set to finally announce he will leave Downing Street.
The Conservative leader's authority has evaporated this week after dozens of his own MPs quit their government jobs in a bid to kick him out of office.
Johnson will make a statement later today in which he is expected to confirm he will stay on as Prime Minister until Tory MPs have chosen a new leader.