Elections were held in Illinois on Tuesday, November 2, 2010. Primary elections were held on February 2, 2010.

Lisa Murray Madigan is an American lawyer and politician. A member of the Democratic Party, she served as Attorney General of the U.S. state of Illinois from 2003 to 2019, being the first woman to hold that position. She is the adopted daughter of Michael Madigan, who served as Speaker of the Illinois House of Representatives from 1983 to 1995 and from 1997 to 2021.