Sorry to say I know almost nothing about Illinois' politics. I seem to remember there was a Dem governor there who was jailed for operating illegally. Sounded like a well-founded conviction at the time. But I don't know anything about bipartisan systemic issues.
Corrupt politics is always bad. But stuff on the margins is also very difficult to avoid. Achieving a level playing field in either the market or government is more-or-less impossible.
Hope you enjoy your new state!