THE EYES of the political world will be on us come fall. Pennsylvania is home to the hottest Senate race and three of the most contested House races in the nation. The outcome of the Santorum-Casey, Fitzpatrick-Murphy, Gerlach-Murphy and Weldon-Sestak races could determine control of Congress. The vulnerability of many GOPers is war-related. But there are also important social issues, notably the attempted intervention in the case of Terri Schiavo. Some clues on that might be found in Connecticut, which just had a bruising Democratic primary between Joseph Lieberman and Ned Lamont. Not only did they differ on the war,...