This, if true, is interesting: Further complicating efforts to predict the outcome, Representative Dennis Kucinich of Ohio said today that he and Mr. Edwards had reached an agreement specifying that if neither reached the 15 percent viability threshold for delegates tonight, the supporters of both would unite behind the candidate with greater support. "John and I are friends," Mr. Kucinich said. "He and I have complementary constituencies. I'm going to do well in college towns and urban areas. He is going to do well in rural areas. Rather than leave it up to chance, we're letting our supporters know to support the other guy."