I heard an interesting discussion on BBC Radio 4 this morning about Rick Santorum’s so-called sweater vests. He happened to like wearing these sleeveless pullovers but then became identified with them and so has apparently decided to turn them into a visual tag. Elio Di Rupo, Belgium’s current Prime Minister, long ago decided that his visual tag would be a red bow tie (unconsciously echoing the late Liberal politician, Willy De Clercq, but whose bow ties varied in colour). When I first started following the European Parliament, a German Green MEP (I have forgotten his name) would always attend plenary sessions in leather shorts and mountain boots. UKIP leader Nigel Farage, MEP, always sports a felt-collared overcoat. Nick Clegg, now UK Deputy Prime Minister, seemed always as an MEP to wear a pullover under his suits. Which brings me to this morning’s studio guest, former Conservative MP Gyles Brandreth, who was famous for his collection of outlandish jumpers. Brandreth observed that the pipe-smoking former Labour Prime Minister Harold Wilson frequently held his pipe in such a way that his wedding ring was visible. According to Brandreth, this was a subtle visual means of underlining the difference between him and his rival, Edward Heath, who was a confirmed bachelor. Could it be?