Polly won't be voting for Boris then?

Boris the jester, toff, serial liar and sociopath for mayor

David Cameron has just made his worst mistake.

He will bitterly regret the day he encouraged Boris Johnson to stand as London's mayor. What does it say about the desperate state of the Conservatives that they will put up a clown to run a great global city? London is the nation's powerhouse, and a city of daunting complexity.

Tories running top City firms and Conservative boroughs won't find the Boris Johnson candidacy charmingly funny. Some may or may not agree with his rightwing views, but they will wince at serious London politics treated by the Tory leadership as a celebrity Eton wall game.