There is one very important reason why Remain-voting areas of the UK are not going to get a deal like Northern Ireland's

A day is a long time in politics. Just yesterday, we could have assumed that two of our most prominent non-national politicians – London mayor Sadiq Khan and Scottish First Minister Nicola Sturgeon – were opposed to hard borders on the same island. They would have supported the government’s efforts to avoid such a thing happening in Ireland. Today, however, they are both trumpeting the benefits of a hard border separating Scotland from England, and the British capital itself from the rest of the country.

Strange times.

It all started with Northern Ireland. No one knows, at this stage, if the latest rumours of a compromise on the future of the border between Northern Ireland and the Republic of Ireland will find their way into the final Brexit deal.