On Saturday, Labour’s mass membership will again endorse Corbyn as leader of the Labour Party, proving beyond doubt that in politics there is no mistake so big that it can’t be made twice. The Islington MP and infrequent supporter of the last Labour government will succeed because he knows what all these new Labour Party members want to hear and he is more than happy to oblige.

I see, on social media, a constant criticism of his opponents within the party, that they are unable to appeal to and communicate with ordinary party members. This is obviously true, as Saturday’s results will show. But what if the priorities and views of a party’s membership are entirely at odds with the priorities and views of the electorate? What if the messages that will encourage support from the one per cent are exactly opposite to those you need to communicate in order to win a hearing from the 99 per cent?

Therein lies Labour’s existential problem: it cannot win a general election by appealing to its own members, because there’s barely an overlap between them and the general electorate. A message – Corbyn’s message – that is so welcomed by his followers will go down like a cup of cold sick when it’s aired during a general election campaign.