JOHN KASS: Blagojevich sends not-so-subtle message to Obama. “Obama’s former patron and real estate fairy, the convicted influence peddler Tony Rezko, is a key player in the government’s case. Blagojevich’s aim is to undercut what Rezko has told investigators. And now Blago wants the president to do the undercutting from the witness stand, with the nation riveted to his every recollection of his days in Chicago politics, hanging with Tony and the guys, with the midterm November elections approaching.” Or, you know, to make the case go away.