Responding to the publication of the Sue Gray report, Scottish Liberal Democrat leader Alex Cole-Hamilton said:
"This report lays out in black and white the culture of rule-breaking and lawbreaking presided over by the Prime Minister. He made the laws, broke them and then lied about it to the British public.
"This is also a defining moment for Douglas Ross in his leadership of the Scottish Conservatives. I have spoken to members of his party and Conservative voters who are shocked that he is still standing by a Prime Minister who is only out for himself. He needs to grow a backbone and submit his letter of no confidence.
"Every household in Britain faces eye-watering costs at the petrol pumps, sky-rocketing food prices and massive energy bills. It needs new hope and new leadership."