The basic story is this: Gordon Smith was a 100% (okay, maybe 95%) supporter of the war, from early 2003 up until a few weeks ago. And then he decided that the war is terrible, maybe even criminal.
Which is good that he realized this now, but where has he been for the last four years?
Either up until this point, he didn't know that the war was going to end up badly (something that means he is not particularly intelligent, didn't bother to do his research, was too arrogant to listen to anyone who said otherwise, and wasn't thinking long term), or he didn't care how things were going to end up (meaning that as long as he could wave the flag and ride Bush's coattails, he didn't actually care what was happening). Either one doesn't speak well for someone who is supposed to be a Senator.
So, yeah, I guess I should be glad that he is seeing reality...but I might like him better if he actually stuck with the war, and actually had beliefs. It seems now that is he is just trying to weasel away. He supported a war because he was either too lazy to think about it, or didn't care about it until it affected his chances for reelection.