Did Obama Really Ever Go To Columbia?

SEE HERE  It is pretty strange when none of your classmates and none of your professors remember the student that was supposed to have gone there but that no-one remembers.  Just how does that work?  It is a curious thing.  Obama appears to have been the student that wasn't there.  There are many mysteries about Obama and this is not the least.  We need a better system of vetting presidential candidates.  At least we should know if they are real.