Another Democrat is joining what is becoming a crowded field of candidates for Illinois' 13th Congressional District seat. David Green of Champaign said Monday that he will run in the Democratic Party primary. He joins University of Illinois physicist George Gollin and retired Edwardsville judge Ann Callis. Green is a 63-year-old social policy analyst at the University of Illinois' Center for Prevention Research and Development. He told The News-Gazette in Champaign that he's anti-war and hopes to appeal to leftists and anti-war libertarians.