No, he's right; the guy isn't claiming to have been a classmate of Obama's, I should have put the word "supposed" classmate because the guy claims he never saw Barack Obama at any Political Science classes -- the degree plan in which both were supposedly enrolled.
In fact, somebody polled a few hundred of Obama's ostensible classmates, from Columbia, and not one of them even remembers him being there.
My bad.
Of course, Obama could clear this all up by releasing his transcripts and enrollment do ents.