Uri Friedman at Foreign Policy:
On the campaign trail, Mitt Romney contrasts his vision of American greatness with what he claims is Barack Obama's proclivity for apologizing for it. The “president doesn't have the same feelings about American exceptionalism that we do,” Romney has charged. All countries have their own brand of chest-thumping nationalism, but almost none is as patently universal — even messianic — as this belief in America's special character and role in the world. While the mission may be centuries old, the phrase only recently entered the political lexicon, after it was first uttered by none other than Joseph Stalin. Today the term is experiencing a resurgence in an age of anxiety about American decline.