The political class here in America, otherwise painfully divided, is unanimous on one thing: Dave cut an inoffensive figure when he came to visit the so-called leader of the free world this week. Indeed, such offence as was caused seemed to be directed back at Dave's fellow countrymen, after his obtuse remark about Britain's having been America's "junior partner" in 1940. This idiotic mistake shows that Dave remains a supreme PR man with the PR man's traditional flexibility with the facts, and we must doubt he cares too much about having got them wrong. But being a PR man seems to be a valuable talent on adventures such as this, in a country where almost...