For the first time in a lifetime of political analysis, I find myself lost for words. Nothing I write can do justice to the calamity that Britain’s Labour Party has just inflicted on itself. The best I can do, to give you a sense of the man newly elected as Leader of Her Majesty’s Opposition, is to summarize some of his opinions.

Jeremy Corbyn is happy to talk to Irish Republican Army men, avowed anti-Semites and Hezbollah militants; but he refuses “out of principle” to talk to the Sun newspaper, a right-wing tabloid.