Obama, I suspect, is simply weak on national security (which is why he was against the war all along).
This idea that Bush/Republicans are strong on national security is very strange. 9/11 happened on their watch, and almost 6 years later we still haven't gotten the guy who orchestrated it and Al Qaeda is as strong as ever. How exactly is that strong? As for Obama being weak, here's what he had to say recently: "It is time to end this war so that we can redeploy our forces to focus on the terrorists who attacked us on 9/11 and all those who plan to do us harm." To me, that sounds stronger than what we're doing now.