Virginia Sen. John Warner's words betray the guilt he still carries about the Vietnam War and help explain why this pillar of the Republican establishment is leading a bipartisan revolt against the war plans of a president in his own party.

"I regret that I was not more outspoken" during the Vietnam War, the former Navy secretary said in an interview in his Capitol Hill office. "The Army generals would come in, 'Just send in another five or ten thousand.' You know, month after month. Another ten or fifteen thousand. They thought they could win it. We kept surging in those years. It didn't work."

Is that a lesson for what's going on in Iraq?

"Well, you don't forget something like that," he answers. There is a long pause, he closes his eyes and his voice gets softer. "No. You don't forget those things."