Then there are the wives. In Milwaukee on Monday, Michelle Obama, who has spoken frequently in the campaign, said: "Hope is making a comeback, and let me tell you, for the first time in my adult life, I am proud of my country. Not just because Barack is doing well, but I think people are hungry for change."

For the first time in her life? Coming from the realm in which Michelle Obama has lived her adult life -- Princeton, Harvard Law, a top law firm, a $342,000-a year job doing community relations for the University of Chicago hospital system -- this may not sound out of the ordinary. As Samuel Huntington has pointed out, people in this stratum tend to have transnational attitudes -- all nations are morally equal, except maybe for ours, which is worse.

This is not, to say the least, the view of most Americans, including very many who regularly vote Democratic. And it undercuts Barack Obama's most appealing rhetoric, which emphasizes what Americans have in common.

Cindy McCain, who ordinarily doesn't speak in public, picked up on this immediately. On Tuesday, she made a point of saying, several times, that she has always been proud of America. On election night, John McCain said he was "proud, proud of the privilege" of being an American.

I remember the electric feeling in the hall, at the first Republican National Convention I attended, in 1984, when Lee Greenwood belted out his country hit, "I'm proud to be an American." I don't believe that I've heard it at any Democratic National Convention, and I'm pretty sure that some nontrivial number of the delegates would find it off-putting, even obnoxious.

Barack Obama has explained that his wife was just saying that she was proud for the first time of her country's politics. But that's not what she said, and said with considerable emphasis. Tuesday night seemed to be the beginning of the general election campaign. But what was said on Monday may prove to be just as important.