Illinois' political map has shifted dramatically in the 21st century with Democrats now dominating large cities and the suburbs, and Republicans holding small towns and rural areas. Two researchers at Southern Illinois University, John Jackson and John Foster, discuss that trend and the new paper they have just published. (Read the whole paper at https://news.siu.edu/2022/06/061522-Latest-SIU-Paul-Simon-Institute-research-analyzes-2020-election-provides-context-for-22.php)