Madigan is the Darth Vader of Illinois politics. He was speaker of the Illinois House from 97' until 21', when another scandal involving ComEd, if I recall correctly, finally forced him to resign. His other hustle is lowering the property tax rate of insiders - http://www.madigetz.com. Illinois politics is filled with the most ludicrously corrupt characters you can find. One interesting case from my neck of the woods is the Stephens family of Rosemont, who are, nominally, Republicans, but work with downstate Democrats to pass red light camera legislation, after receiving bribes from the companies that stand to gain - https://chicago.suntimes.com/politics/2020/10/18/21516422/re....
Rosemont is one of the weirdest places I've ever encountered. It's essentially family-run for-profit operation that caters to the corporate clientele of O'Hare airport.