It means he doesn’t want the Illinois impeachment panel to raise issues that will enable Blagojevich to implicate Obama in his defense.
Fitzgerald is trying to build a wall to protect Obama from being linked to the corruption in which he has been involved his whole political career, in my opinion.
Unfortunately, I agree with you, Piranha. There’s really no more cynical that I could get re: all angles of the establishment and the protection of Obama.