Well, at least we DO HAVE a Video of Obama at Harvard speaking in favor of a protesting professor ( Professor Derrick Bell ) whom some branded a radical and others a fighter for racial equality.
SEE HERE:
http://www.politico.com/news/stories/0312/73793.html
The other side of the coin is that it is easy for a non-student to hang around a university and appear to be a student. A non-student can easily attend most classes without question and hang around the student union and other campus meeting places. And it's nothing at all for a non-student to hang out at off-campus student gathering places like pubs, eateries, etc. and live in an apt. near campus.
For someone inclined to pass themselves off as a student and be involved in student political activism it would be a piece of cake. Even professors and administrators could come to think of them as students. That's why I asked if there were proof that he was ever enrolled.
Columbia University proudly claims Obama as a 1983 graduate. The university magazine Columbia College Today profiled him as far back as 2005, after he was elected to the U.S. Senate.
That might be proof that they want to claim an association with him but it isn't proof that he was enrolled. Let's see the records of his syllabus, his graduation and his grades.