In every year divisible by four, the dominant superstition of American politics — faith in the magic of presidential words and deeds — reaches an apogee that feeds national narcissism: Everything that happens anywhere is about us, is a response to something America did or did not do, and can be controlled by a president doing — even just saying — something.

This self-absorption was evident as Mitt Romney and the Obama administration sparred about violence directed at U.S. facilities in the Middle East and elsewhere. Romney called this the fruit of administration weakness; the administration blamed it on a video. It would require exquisitely precise intellectual calipers to gauge which idea is silliest.

In Egypt, Libya and elsewhere, the crumbling of old regimes and hierarchies has ignited complex sectarian and tribal power struggles, in which some participants find anti-Americanism useful. None of the people involved — some cunning, some deranged — take their cues from utterances by America's president. So it was passing strange for Rich Williamson, former assistant secretary of state and current Romney adviser, to say, regarding the Egypt and Libya attacks, "There's a pretty compelling story that if you had a President Romney, you'd be in a different situation."