From NBC's Mark Murray
The first round of questions -- on Iraq -- has just ended, and there weren't any real fireworks. Sen. Edwards was asked whether his past comment -- "We need a leader... who will tell the truth when they've made a mistake" -- was a shot against Clinton and her refusal to apologize for voting to authorize the Iraq war. He said it was a matter of her "conscience," and Clinton responded by saying she has taken responsibility for her Iraq war authorization vote. The bigger question, she said, is "what do we do now?"