Remember that Democrats were the last to believe (and probably never did believe) we should take action against Saddam Hussein. They opposed the war until the last minute, when they were coerced, through public opinion, to support the war resolution.
It's easy to dismiss their appeasement mindset now since we haven't confirmed Saddam had new stockpiles of WMD and because we've had so much difficulty in the post-regime-change phase of the war. But don't forget that Democrats were initially opposed to the war even when they were thoroughly convinced Saddam had WMD and was pursuing more .
But after supporting the war, they didn't have the character to stand by their decision once things started going badly, or at least when they realized they could make political hay by reneging on their decision to support the war.
That's when they began their lies about Bush's alleged WMD lies. They were duped, they say, into supporting the war. But forget the alleged lie issue for a moment. What their statements imply is that they would have happily supported the war had we been correct (and we still might have been) that Saddam had WMD.
But haven't they also told us, in effect, that they wouldn't have supported the war no matter what we believed about WMD because their clairvoyance revealed to them we would be greeted not as liberators, but occupiers, and that the situation would deteriorate into civil war because of sectarian conflict?
Just going on the Democrats' words alone, then, we find they opposed the war when the evidence was clear Saddam was a WMD-wielding global menace, and they supported the war when the evidence was clear Saddam was a WMD-wielding global menace. They opposed the war believing we would be greeted as occupiers, not liberators, and they supported the war believing we would be greeted as occupiers, not liberators.
Through the Democrats' approach to Iraq and the war on terror generally, we know they are untrustworthy, unreliable and ill equipped to guide the ship of state through wartime waters. Even if they weren't duplicitous, they simply cannot grasp the evil nature of our enemy.
Among the many lessons we learn from Iraq, these should be at the top of the list.