Obama himself has made the "case" by refusing to show his original long form birth certificate to the American public.
It's a simple request. If he's legitimately eligible to hold the office of the presidency, then he could (and should) squash all of the controversy by producing this simple document.
The fact that a man in the most powerful political position on earth refuses to do this, casts extreme suspicion on him.
Again, it's a simple request. If Obama's got nothing to hide, then why won't he show his original long form birth certificate to the public?
The fact that he is the man in the most powerful political position on earth, may mean that he just either doesn’t think this is important, or that he’s really busy as president, and just doesn’t have the time or inclination to appease those that need appeasement.