Evil yes, Naive is an over statement he is a bumbling idiot.
And this is my opinion as well. As Rush Limbaugh has said on occasion, "Whenever Obama Walks into a room, he is always the least competent person in the room. "
Yes, he's the stupidest person who ever managed to get into the White House. As others have mentioned, he is a "Post Turtle."
Another reason why he won't dump Biden in favor of Hillary in 2012 (apart from fear of being Arkancided).