Which leaves the 60,000 or so new Supporters who have signed up at the £3 discount rate. It’s quite clear that a number of people signing up joining this scheme are in fact supporters of other political parties. According to Labour around 1,200 applications have been blocked for this reason. Which is troubling, but also proof that the party is scrutinising these applications, and is being effective in weeding out a number of genuine “entryists”. But even if every single one of these new Supporters was a Breton cap-sporting Trotskyist (they’re not) that would account for around 15 per cent of the electorate. Not insignificant. But nowhere near enough to explain polls showing Jeremy Corbyn poised to win over 50 per cent of the vote on the first ballot.