Charlie Gibson directed a taunting "will you admit the surge worked?" question at Hillary Clinton and she gave the exact right response -- she admits nothing, the purpose of the surge was political reconciliation, reconciliation hasn't happened, the surge failed.
UPDATE: Good for Obama, too, complaining that "the bar of success has gotten so low" and pointing out that we're now where we were two years ago, which was a bad place to be.
This article available online at:
http://www.theatlantic.com/politics/archive/2008/01/surge/47771/