"Over this summer, the United States and Iraqi forces launched Operation Forward Together," he said. "It began in June, and then phase two began in August with thousands of American troops going into Baghdad to try to stabilize the situation. They haven't stabilized the situation. So we have tried this surge of troops over the summer. I am not persuaded that another surge of troops into Baghdad for the purposes of suppressing this communitarian violence, this civil war, will work."
He seemed to wonder how much of the solution is in U.S. hands.
"It is very difficult to see how the American army, the United States armed forces, can impose its will on this kind of conflict," he said. "Ultimately, I think, the Iraqis are the key to the solution. And what I'm sure President Bush is trying to come up with over the next several weeks is: How can American strategy and American efforts support the Iraqi strategy?"
ABC News' Bob Jamieson contributed to this report.