It's a bit.....overzealous......to suggest [Obama would] refuse to leave office if he lost or if his two terms ran out without an overturn of the term limits, or to suggest that he might do something drastic and irresponsible if he had to deal with a republican congress.

More importantly, even if Obama did try to overstay his Constitutional welcome as President, he'd quickly learn that the United States of America isn't Pakistan. Our entire system of government was designed by a team of political geniuses whose primary concern was making it impossible for any future President to ever do exactly that. In the event, my money's on them.