"It's no secret that I have been the target of vicious attacks by people who sought to diminish my many achievements lifting up the working people of Illinois," Madigan said in part. "The fact is, my motivation for holding elected office has never wavered. I have been resolute in my dedication to public service and integrity, always acting in the interest of the people of Illinois."

He went on to say "I leave office at peace with my decision and proud of the many contributions I've made to the state of Illinois, and I do so knowing I've made a difference."