After the votes were counted in Illinois' primary elections last week, the nominees for the U.S. Senate were overflowing with diplomacy. Said Senator Paul Douglas, unopposed in the Democratic primary: "I'll wage my campaign without malice, and in good temper." Said Joseph T. Meek, the Chicago Tribune-supported candidate who beat eight other Republicans: "It's always been 'Paul' and 'Joe' between us."
Despite these muted statements, there was good reason to believe that the tone will grow considerably harsher as November approaches. For in Paul and Joe, Illinois voters nominated two candidates who offer a clear contrast.
Paul Douglas, onetime professor at the University...