ILLINOIS& COOK COUNTY SEPARATE House SponsorsRep. Bill Mitchell-Adam Brown-Mike Bost and Jil Tracy 1/8/2013HouseSession Sine Die Urges Congress to enact legislation dividing Illinois and Cook County into separate states. 11/22/2011HouseFiled with the Clerk by Rep. Bill Mitchell 11/22/2011HouseAdded Chief Co-Sponsor Rep. Adam Brown 11/28/2011HouseAdded Chief Co-Sponsor Rep. Mike Bost 11/29/2011HouseReferred to Rules Committee 12/12/2011HouseAdded Co-Sponsor Rep. Jil Tracy 1/8/2013HouseSession Sine Die