There should be a distinction between the public and congress imo. We send our representatives there to govern, not to take a poll of what is popular at the moment and then govern off of that. What if 80% of the country was against entering Europe during WWII? Ideally, our congress is composed of men and women that are more intelligent and capable than the average of our citizenry. If not, then god help us. Have you taken a look at the average citizen? Turn on your TV, the programming there is a result of what appeals to them. I don't think the President should look to the populace for guidance on issues. This is what elections are for. Only congress can "declare war" so it's right to seek their approval. We have only had 5 such approvals though, it's my understanding that Vietnam, Afghanistan, Iraq and many other conflicts we have termed "war" are actually termed "Military Engagements." -These still seek the approval of congress though.