But foreigners would be wise to temper their Obamamania, if only to limit future disappointment

IF THE business of electing the most powerful man in the world were up to the world, rather than just those pesky Americans, Barack Obama would face no contest. A poll for the Guardian this week, on the eve of Mr Obama's whirlwind tour of Europe and the Middle East (half a dozen countries in a week, some for the first time in his life), shows that Britons would back him against John McCain by the astonishing margin of five to one. The Pew Research Centre reported last month that, in each of the main European countries, at least twice as many people have confidence in Mr Obama as in his rival. Elsewhere things are a bit more nuanced, but from Mexico to China, and from Russia to Australia, the foreigners are firmly in the Obama camp.

There are reasons for them to be more cautious. Marvellous orator and skilled electoral tactician though he may be, Mr Obama has not repealed the basic laws of politics. Most obviously, he may not win. Rasmussen, a pollster, rattled the Obama machine this week by showing the two candidates tied, and most other analysts agree that the bounce he enjoyed after seeing off Hillary Clinton has been small and short-lived. Mr Obama still definitely has the edge, but opinion at home diverges sharply from that in most of the rest of the world. ...