Boris Johsnon has been accused of dealing with his potential Tory leadership rivals in a "brutal way".
Ian Blackford, the SNP leader at Westminster, said today it was "obvious" there had been a fall-out between the Prime Minister and the Chancellor.
Rishi Sunak has faced calls to resign after it was revealed Akshata Murty, Sunak’s multi-millionaire wife, claims non-domicile status which allows her to save millions of pounds in tax on dividends collected from her family’s IT business empire.
The Chancellor also held a US green card - allowing permanent residence in that country - until October last year.
Sunak has accused his critics of running a "smear" campaign against him and has demanded an inquiry into who leaked details of his family's finances to the media.
Johnson last week denied claims that 10 Downing Street is briefing against the Chancellor and insisted he was doing an "outstanding" job.
Blackford told Sky News: "Quite frankly, the sooner they are all gone, the better".
Asked if Sunak was paying a price for not supporting the PM through the PartyGate scandal, Blackford said: "It's obvious there has been a fall-out between the Chancellor and the Prime Minister.
"Boris Johnson has managed so far to navigate himself through the PartyGate crisis and he still needs to be held to account for that.
"But it is clear that those he views as challengers are being dealt with in a fairly brutal way.
"My message is - it doesn't need to be like this.
"When we look at the charge sheet against Boris Johnson, and against Rishi Sunak, we've had all the scandal of PartyGate, we've had the paying of wallpaper for No 10, we've had the crony deals that put people in the House of Lords.
"This is a government that stinks to high heaven. It's about corruption, it's about sleaze - and this is just the latest example of this. Quite frankly, the sooner they are all gone, the better."
Blackford added: "Boris Johnson and his ilk have behaved in this way ever since they had a privileged upbringing at Eton and the whole lifestyle.
"And the fact that through all of this, we've had a Prime Minister who has presided over a culture of partying at No 10 when everyone else was behaving themselves through covid.
There is real anger up and down these islands - and it is right that people are saying that if you fail to live up to the standards the rest of us are expected to do, then quite simply you should go."
Asked if the public would view politics as brutal, Blackford replied: "It is brutal and I think in many respects we do need a kinder, gentler politics.
"But there has to be honour and dignity. If you people clinging on to office, when they are clearly in the wrong, then that sets the tone, that sets the culture."
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