If tall, well-spoken, moderate Republican John Lindsay, 43, could land the mayoralty in New York, why couldn't short, well-spoken, moderate Republican Charles H. Percy, 46, win a U.S.
Senate seat in Illinois? The parallel appeals strongly to many Midwestern Republican leaders. Last week they were striving mightily to impress it on Chuck Percy, the Bell & Howell board chair man who narrowly lost his bid for the governorship in last year's G.O.P. debacle. Next year, they urged, Percy should enter the lists against three-term Democratic Senator Paul Douglas, 73, a popular paragon of liberalism and a comfortably protected member...