Illinois is a state in the United States. Its capital is Springfield and its largest city is Chicago. It is bordered to the north by Wisconsin, to the west by Iowa and below that, by Missouri (both borders are along the Mississippi River). To the south-east, Illinois is bordered along the Ohio River by Kentucky and to the east by Indiana. Illinois northeasternmost boundary is to Lake Michigan. Most of Illinois outside of Chicago (its most populous city) is heavily conservative. In 2016, for example, nearly 40 counties in Illinois gave Trump 70% or more of the vote there. However, Chicago makes up over half of the state´s population, and Cook County (in which Chicago is located) gave Trump just 21% of the vote there. Therefore, the governor of Illinois is currently a Democrat, as are both its US Senators and over 70% of its representatives.