Senator Roland Burris, Blago’s pick to fill Barack Obama’s Senate seat, did not have a good week. He’s under investigation for making contradictory statements about his fundraising connections to the disgraced ex-Governor Rod Blagojevich; new Illinois Governor Pat Quinn and a coalition of black ministers have called on him to resign; the White House has urged him to think about his future; an Illinois newspaper discovered he did not reveal all his lobbying clients (including mortgage bankers and the tobacco industry); and his key Capitol Hill staffers have fled his office. The question is, can he hold on and resist the calls for him to pack it in? On Friday night, I pondered the Burris matter on Hardball: