In some respects, those leaders are oddly similar. George Bush and Mahmoud Ahmadinejad are both deeply religious, referring frequently to God’s guiding hand. Both are idealists rather than pragmatists, and skilled at folksy populism. Both have replaced dozens of competent officials with like-minded conservatives. And both are now considered, by a large slice of their countrymen, to be bungling and dangerous. The difference is that it has taken Mr Ahmadinejad just two years in power to achieve the unpopularity Mr Bush has gained after six.
There are differences, of course. Mr Bush may be accused of curtailing civil liberties in pursuit of his war on terror. But his government does not drag women off the streets for maladjusting hijabs, the obligatory covering of head and shoulders, or jail student activists as dangers to national security or smear political opponents as traitors or muzzle their speech.
On the other hand, Mr Ahmadinejad may be bombastic but he has not implied he may bomb America—and could not, even if he wanted to.