Mark Kirk, in his first run for office, won the open seat in the 2000 election with 51 percent of the vote beating Lauren Gash, who was a state representative.
Under a more Republican district, crafted under a new redistricting map, he was re-elected in 2002 with 68 percent of the vote against Democrat Henry H. "Hank" Perritt Jr., a Glencoe resident who was dean of the Chicago-Kent College of Law.