I don’t know enough about public opinion in Scotland to know if Nicola Sturgeon’s commitment to a second independence referendum is a brilliant political move or a major error. People could very easily turn against her call, seeing it (as May has tried to present it) as putting political opportunism above the national interest. But if the majority of Scots are pro EU they may well see it as a smart move to apply more pressure on the government to step back from a hard Brexit and to win concessions for Scotland.

One thing has become clear in the last week – the interventions most likely to cause real problems for the government in the next couple of years are going to come from the SNP, or the Tory’s own ranks but not from Her Majesty’s official Opposition.