What has happened to us all, when serious papers can start raving about "Prime Minister Clegg"? Has someone put something in the water supply? Has some sulphur yellow cloud descended imperceptibly from Iceland and addled our brains? These are Lib Dems we are talking about! They say anything to anyone. They are not so much two-faced as positively polycephalous. They go around every university campus promising to abolish "Labour's unfair tuition fees" – while dear Cleggie tells his party conference that this policy, this cardinal Lib Dem policy, would cost £12 billion and that the country can't afford it. In the north of England you will find plenty of Lib Dem literature extolling their "mansion tax", a proposal on which they remain deafeningly silent in places like Richmond and Kingston, where it would mean a vast new tax on people who happen to live in overvalued houses.