Independent candidate, who estimated that he and supporters collected “between 800 and 900 pages of signatures,” could be knocked off the ballot if there are successful challenges to his petitions. SPRINGFIELD — For now at least, there’s a three-way race for the 13th Congressional District seat in Illinois that includes Champaign-Urbana. Independent candidate David Gill filed nominating petitions with the State Board of Elections on Monday, joining incumbent Republican Rep.