Kirk and Giannoulias participate in candidate forum in Chicago

U.S. Senate candidates, Democrat and Illinois Treasurer Alexi Giannoulias (R) and Republican Rep. Mark Kirk prepare for a candidate forum in Chicago on October 27, 2010. The candidates are competing for the seat currently occupied by Sen. Roland Burris, who was appointed by embattled former Illinois Gov. Rod Blagojevich following U.S. President Barack Obama's election. UPI/Brian Kersey