Byron York has a piece on the possible implications for Barack Obama in the Blagojevich corruption scandal: Could the Blago Scandal Ensnare Team Obama? You Betcha.

We don’t know the extent of the investigation into Blagojevich’s allegedly corrupt dealings. Have witnesses been brought before a grand jury? We don’t know. If so, who are they? We don’t know. What witnesses have been interviewed by FBI agents working for Fitzgerald? We don’t know. Do Fitzgerald and his investigators have any doubts about the truthfulness of those who have talked? We don’t know.

But we do know that something big is going on. “There is a lot of investigation that still needs to be done,” Rob Grant, who is the special agent in charge of the FBI office in Chicago, told reporters at the news conference announcing the Blagojevich charges last week. “There are critical interviews that we have to do and cooperation we need to get from different people.” At the same press conference, Fitzgerald himself added, “We have a tremendous amount of information gained from the wiretap and bugs that occurred over the last month and a half or so … .One of the things we want to do with this investigation is to track out the different schemes and conspiracies to find out which ones were carried out or not and who might be involved in that or not. And that’s something we haven’t done yet. Now that we’ve gone overt, we’ll be interviewing people and figuring that out.”