“I find it absolutely incredible that Sadiq Khan, a candidate for the office of Mayor of London, could hire as his speechwriter someone who has suggested that event was in any way fabricated. To my mind that shows an appalling lack of judgement, and I do not see how Mr Khan could command the confidence – or the support – of Londoners.”

The Zac campaign wheels out Boris to slam dunk Sadiq and his gun-toting aide…