The basic contour, the shape of the story: that is clear. The Corbyn upsurge has unleashed an energy and excitement on the scale of the Scottish Yes campaign. It has sucked in tens of thousands of people – young, old, trade unionists, campaigners of all kinds – who had thought the parliamentary system simply wasn’t interested in them any more.
Now, in victory, it proposes a radical shift of direction for the Labour Party, in terms of public ownership, foreign policy, the redistribution of wealth, Trident, Nato – you name it. The history of the Blair-Brown years, with all their successes, compromises and obvious failures, is to be expunged. Listening to some Corbynites, you get the impression that Tony Blair, apparently the Labour prime minister for some period, is a bigger enemy than the Conservatives. At any rate, they propose as big a break with the past as the Bennite revolt against Callaghan-Healey which was beaten back (just) in 1981.