MoveOn.org doesn't speak for 'the left' any more than PNAC speaks for the right.
Wait, most of you repubs never read the blueprint for 2001-2009. nevermind!
Sorry. But, at that time, they did speak to the left. Obama never condemned moveon for the ad. I didn't hear a single left wing goon point out how wrong it was.
Not only that. But all you heard from the Left was how Iraq was the second Vietnam War or how it was going to be worst then Vietnam. Not even a month had passed since USA was on the ground in Iraq and already the Left was fear mongering. Bush being compared to Hitler and Stalin. Please, moveon.org reflected exactly what most liberals thought.
One more thing. Biggest military failure, Vietnam War, is still on the Democratic party's head. Don't forget that.