Peter Gosselin Fitzgerald is a retired American lawyer and politician who served as a United States Senator from Illinois. A member of the Republican Party, he served from 1999 to 2005. Fitzgerald defeated Democratic incumbent Carol Moseley Braun in 1998, becoming the first Republican to win a U.S. Senate race in Illinois since Charles Percy twenty years earlier. He had previously served in the Illinois State Senate from 1993 to 1998.
Steve Rauschenberger is an American politician who served as a Republican member of the Illinois State Senate from 1993 to 2007.
Patrick O'Malley is a former Illinois State Senator and gubernatorial candidate who served as an elected member of the board of trustees and Chairman of the Finance Committee for Moraine Valley Community College from 1989 to 1992.
Christopher John Lauzen is an American politician, businessman, and Certified Public Accountant who served as the chairman of the Kane County Board in Illinois from 2012 to 2020. Lauzen was first elected in 2012. He previously served as a Republican member of the Illinois State Senate, serving from 1993 to 2013. He ran unsuccessfully for Illinois Comptroller in 1998 and for United States Congress in 2008.
William E. Brady is an American politician who was a Republican member of the Illinois Senate from May 2002 until his resignation in December 2020.
Emil Jones Jr. is an American politician who was the President of the Illinois Senate from 2003 to 2009. A Democrat, Jones served in the Illinois Senate from 1983 to 2009, where he served as President of the Illinois Senate from 2003 to the end of his term. Previously, he was a member of the Illinois House of Representatives from 1973 until 1983.
Kwame Raoul is an American lawyer and politician who has been the 42nd Attorney General of Illinois since 2019. He is a member of the Democratic Party.
Carole Pankau is a former Republican Illinois State Senator, representing the 23rd district from 2005 to 2013. Pankau previously served as State Representative from 1993 to 2005.
Randall Mark Hultgren is an American politician who served as the U.S. representative for Illinois's 14th congressional district from 2011 to 2019. He is a member of the Republican Party.
Chapin Rose is a Republican member of the Illinois Senate, representing the 51st district since January 2013. The 51st district includes all or parts of McLean, DeWitt, Macon, Piatt, Shelby, Moultrie, Douglas, Champaign, Vermillion, and Edgar counties in Central Illinois.
Kirk W. Dillard is an American politician and former Republican member of the Illinois State Senate, representing the 24th District from 1993 until his resignation in August 2014. He is also the former chairman of the DuPage County Republican Party. Dillard is a member of the American Legislative Exchange Council (ALEC), serving as Illinois state leader.
Matt Murphy was a Republican former member of the Illinois Senate, representing the 27th district from 2007 until his resignation in September 2016. The 27th district includes parts of Arlington Heights, Barrington, Buffalo Grove, Inverness, Palatine, Wheeling, Prospect Heights and South Barrington.
J. Bradley Burzynski is a former Republican member of the Illinois General Assembly serving in the Illinois House of Representatives from 1990 to 1993 and the Illinois Senate from 1993 to 2011.
Christine Radogno is an American politician and former Republican member of the Illinois Senate, representing the 41st Legislative District in Cook, DuPage, and Will Counties from 1997 to 2017. Radogno served as the Minority Leader, the first female leader of a political party in the Illinois Legislature. She resigned from the Illinois State Senate on July 1, 2017 amid the Illinois budget crisis.
Tim Bivins was a Republican member of the Illinois Senate representing the 45th district from 2008 to 2018.
Jason Barickman, is a Republican former member of the Illinois Senate, who represented the 53rd district from January 2013 until January 2023. Before being elected to the Illinois Senate, he served in the Illinois House of Representatives, representing the 105th district from 2011 to 2013.
Steven Stadelman is an American politician and former television journalist who has been a Democratic member of the Illinois Senate since 2013, representing the 34th district. The district is based in Winnebago County and includes all or part of the municipalities of Rockford, Machesney Park, Loves Park and Cherry Valley.
Brian W. Stewart was a Republican member of the Illinois Senate representing the 45th District since his election in 2018. The 45th District encompasses all of Stephenson, Jo Daviess, and Ogle counties as well as portions of Winnebago, DeKalb, LaSalle, Lee, Whiteside, and Carroll. He also served as a member of the Illinois House of Representatives, representing the 89th District from his appointment in 2013 to 2018. Stewart announced in January 2022 that he would not be seeking re-election to the Illinois Senate.
Daniel McConchie is a Republican member of the Illinois Senate. He represents the 26th Senate District which includes Algonquin, Barrington, Cary, Deer Park, Fox River Grove, Hawthorn Woods, Hoffman Estates, Island Lake, Kildeer, Lake Zurich, Libertyville, Long Grove, Mundelein, and Wauconda.
Robert Jason Plummer is an American businessman and politician serving as a Republican member of the Illinois Senate and serves as Assistant Leader in the Illinois Republican Senate Caucus. Plummer represents the 54th District, which is located on the Illinois side of Greater St. Louis and includes all or portions of Bond, Clinton, Effingham, Fayette, Madison, Marion, Washington, and St. Clair counties. He was the 2010 Republican nominee for Lieutenant Governor, which he narrowly lost.
