JIM LEHRER: And to the analysis of Brooks and Marcus, New York Times columnist David Brooks, Washington Post columnist Ruth Marcus. Mark Shields is away.

David, speaking of Afghanistan, public opinion polls in the United States show support for that war is diminishing. What's going on?

DAVID BROOKS, columnist, New York Times: Right. Well, politically here at home, this is going to be a tough -- I think quite a flashpoint issue. Right now, the majority of Democrats think the war is not worth fighting. The majority of Republicans think the war still is worth fighting.

But when you get into a political tussle, what's going to happen, you're going to get the left of the Democratic Party wanting to pull back. You're going to get the right of the Republican Party not...