The sum of all changes in voter choice in limited local government elections, plus a much closer run thing in London, is clearly a swing from Labour to the Tories. But this simple sum hides a multitude of calculations.

Labour's progression to the Right after 2001 had the comedic, but worrying effect of seeing a Tory Party jump even further to the extremes of politics. However I think the benefits of the further triangulating push to the Right stop there.