New California is a movement that New Illinois is using as a model to become the 51st State. President Paul Preston was interviewed on American Thought Leaders. While some of the grievances in California are different that grievances in Illinois, this video is an excellent discussion of the process we intend to use in Illinois.
More on the resolution to split Illinois.
Brad Halbrook is a Republican member of the Illinois House of Representative serving the 102nd District.
Here is his April 7, 2019 commentary in Champaign's The News Gazette.