First of all, where I in Fitzgerald's place I'd do exactly what he did: arrest Roddy and try to stop him from selling a seat in the Senate or worse, taking it himself. This isn't politics, it's good law enforcement.

Secondly, Roddy started out as a reform candidate following the Ryan governorship and God knows, Illinois needed reform after that! He did okay for the first couple of years and then power corrupted.

Thirdly, trying to link Obama to Roddy's sins is kinda like linking me to the Director of the University library: I know her, we work together, and that's about it. People working in a job tend to know others working at their same level; it in no way means that they are somehow connected in unsavory matters.