For all the twists and turns, all the controversy and time spent on Medicaid expansion in Virginia, still no one can say what will happen in the state's most divisive political fight."That I feel comfortable saying," University of Virginia political scientist Larry Sabato said Tuesday. "It is impossible to say what's going to happen next."  ... In Virginia, attorneys and political scientists point to A.E. Dick Howard as the man to see for answers on constitutional questions. A University of Virginia professor, Howard helped write the state's current constit...