Garry Wills first caught up with the Dukakis campaign back in October, when Iowa's tallgrass prairies were dusted with leaves and the Democratic pack was six dwarfs deep. Since then Wills, one of the country's pre-eminent political journalists and presidential scholars, has tracked Michael Dukakis from debate to primary, from Los Angeles to Brookline, Mass. "He's extraordinarily consistent," says Wills of Dukakis' performance over the past six months. "He glows a bit more in big crowds, as all candidates do, but he's very unswerving."
Wills, who wrote the in-depth profile of Dukakis that appears in this week's magazine, knows his Presidents,...