The Illinois Republican Party is under fire from grass-roots groups who say the party forced U.S. senatorial candidate Jack Ryan to withdraw from the race, and they want his name returned to the ballot. Mr. Ryan, who won the March Republican primary, stepped aside June 25 after details of his sex life were revealed in previously sealed divorce records. He was to run against Democratic state Sen. Barack Obama. "Jack Ryan was under pressure from the state party to resign. They pushed him out, and we want him back," said Doug Ibendahl, who heads a 20,000-member group called the Republican...