Nigel Farage is threatening to sue the Sunday Times over the claim that he employed his student son, paying him out of EU funds. He admits to employing his wife on the EU gravy train but totally denies any gravy splashing on the boy.

Fingers are being pointed at Roger Knapman, the former UKIP leader, as the source of the story. The word is that he was on the phone to UKIP donors demanding Farage should be ousted on Saturday night. Cui bono?