** FILE ** This March 20, 2012 photo taken in Homewood, Ill., shows former U.S. Rep. Debbie Halvorson, Illinois Democrat. as she speaks to supporters in Homewood, Ill. Halvorson is one of many candidates in a crowded field of candidates hoping to fill former Illinois U.S. Rep. Jesse Jackson Jr.'s congressional seat. (AP Photo/Seth Perlman, File)

** FILE ** This March 20, 2012 photo taken in Homewood, Ill., shows former U.S. Rep. Debbie Halvorson, Illinois Democrat. as she speaks to supporters in Homewood, Ill. Halvorson is one of many candidates in a crowded field of candidates hoping to fill former Illinois U.S. Rep. Jesse Jackson Jr.'s congressional seat. (AP Photo/Seth Perlman, File)