barack michelle good riddance columbia university president lee bollinger tell students convocation monday get excite president barack obama way first lady michelle obama immediately though students would wait finish term 2017.bollinger explain exactly obamas might columbia definitely set gossip train motion columbia spectator joke might get ready upstage amal transfer vastly inferior princeton wait miles-long line duane reade regret give people healthcare april new york post already speculate obama might return columbia graduate 1983 teach law school become president obama teach law university chicago presidential library build however location presidential library announce foundation say also intend maintain presence columbia university bollinger say time look forward host foundation campus take great pride part post-presidency alumnus via nym break obama reportedly return columbia university 2017