By Bagehot
KWASI Kwarteng, elected in 2010 as the Conservative MP for the safe seat of Spelthorne, is by common consent a rising star of the right. His CV bears academic distinctions in the same way that a Russian general’s chest bears medals: scholar at Eton, good degree then a history PhD at Cambridge, Kennedy scholar at Harvard, even a place on the college team that won University Challenge, a brainy television show. He has pos