It is left to me to point out this regrettable, overlooked fact: Dave blew it

This is a column I never thought I’d have to write. I’d assumed that the conclusions to be drawn from the general election were so bleeding obvious that I could leave all the post-match analysis to the experts, while I distracted you with something more cheerful like, say, a piece about Fergal Keane’s brilliant new book on the battle of Kohima.