Boris Johnson should resign if he's found to have broken the Ministerial Code, the leader of the Scottish Conservatives has declared.
Douglas Ross broke ranks to say the Prime Minister should quit if an investigation finds he broke rules on declaring conflicts of interest over the "cash for curtains" refurb of his Downing Street flat.
It comes as Lord Geidt, the newly appointed “independent advisor” on ministerial standards, leads one of three investigations into how the lavish makeover was funded.
But it appears unlikely the PM will be found to have broken the Code - because Boris Johnson himself gets the final say over whether he's breached rules.
And the Prime Minister has even overruled officials in the past, ruling Priti Patel did not break the Code over bullying claims despite a report saying the opposite.
Scottish Tory leader Douglas Ross - who'd previously called for Nicola Sturgeon's resignation over what contact she had with Alex Salmond - today said the PM should resign if he's found to have broken the Ministerial Code.
Asked the first time, he told the BBC: "Well Nicola Sturgeon was found to have misled MSPs in Parliament by a cross-party committee.
"There are currently three investigations under way in terms of what the Prime Minister has done and issues around that and I think it's right that we look to have serious questions answered on all of those points."
Asked a second time "yes or no" if the PM should resign if he's found to have broken the Code, Mr Ross told host Andrew Marr: "Of course, I think people expect the highest standards of those in the highest office of the land.
"And that's why I think people are looking at the investigations that are ongoing and waiting for the answers to be heard."
It comes amid fresh questions about who could be trading favours with the skint Prime Minister after a lavish revamp of his grace-and-favour flat above 11 Downing Street.
No10 have insisted the Prime Minister paid for his fiancee Carrie Symonds' £58,000 refurbishment of the Downing Street flat himself.
But crucially they have repeatedly refused to say if Mr Johnson - who had a costly divorce from wife of 25 years Marina Wheeler - borrowed the money to do so.
New reports today claim a Tory donor was asked to fund a nanny for Boris Johnson's baby because the Prime Minister can't survive on his £157,372-a-year salary.
A No 10 spokeswoman said: "The Prime Minister has covered the cost of all childcare."
But she failed to say if a Tory donor was initially asked to pay. And she did not respond when asked if the PM paid for the original bill for Wilfred - who he had with fiancee Carrie Symonds last year and is at least his sixth child - or had reimbursed somebody else.
Today's Sunday Times also carries shock claims that Tory chiefs footed a bill for the PM's £165-an-hour personal trainer, and a personal chef when he was hospitalised with Covid.
Tory co-chairman Ben Elliot has denied both claims, according to the newspaper.
Foreign Secretary Dominic Raab today admitted Boris Johnson will get to decide for himself whether he's broken the Ministerial Code.
He told Sky News: "The Prime Minister is the ultimate arbiter of, the ultimate accountability for the Ministerial Code. He has the authority to dismiss ministers, to make sure they live up to the code.
"So if your question is then 'who holds him to account', ultimately… there’s no separate body or individual that will have power over him. It’s the British people, he’s accountable to them, that’s why we have elections."
The Prime Minister is not directly voted into that office in an election - instead the leader of the largest party in Parliament generally gets to move into No10.
The next general election is only due in 2024.
