Without Chicago, Illinois would be as red as Indiana. Without Chicago and the stain around St. Louis, even darker red.
By the way, the Republican Governor (who beat Quinn) is now considered "stubborn" because he won't give in an just let them write more bad checks to pay all those bills.
In 2010, then-Gov. Quinn won four counties. He won Jackson Co., which includes Carbondale.
2016 President, Illinois without Cook County
49.75% Trump
43.46% Clinton
That’s even with a poor result for Trump in the Chi suburbs
Romney also won in 2012.
Obama won in 2008, Bush won twice, Clinton won twice but only by a hair.