I have often said that Illinois (my original home state) needs to secede  from Chicago. Seems I’m not alone in thinking that:

The State Of Lincoln

1. What is the State of Lincoln?

The State of Lincoln will be a new state, one to be created from those counties of the State of Illinois outside of Cook County (Chicago) which seek to join together to form this new state and to be admitted to the Union as such, along with certain townships and municipalities within certain counties which, as a whole, may decide to remain part of the State of Illinois. This has been done before. For example, Kentucky was created from part of Virginia, Maine was created from part of Massachusetts, and West Virginia was created from part of Virginia. This was done pursuant to Article IV, Section 3, Clause 1 of the U.S. Constitution.