Sam Coates on The Times got it first. “So where did it come from?” Guido asked, Sam is obviously not saying. The video is clearly recent, filmed by a campaign-friendly video-camera, rather than a hostile journalist.

Guido suspects that given that the Labour Party is polling double digits behind the Conservative Party, Ken is shrewdly distancing himself from the party that is a liability. Why else when asked “what would you say was your proudest moment?” would he laughingly reply: “Oh it’s taking on and smashing the New Labour machine in 2000 when Tony Blair wouldn’t let me run for mayor and just grinding them into the dust. But you won’t be able to use that one.”

But they did use that one, didn’t they? Ken got coverage and distanced himself from the party to which he is only semi-attached at the best of times. Smart tactics? Ken is no April fool…