To win the primary, the newcomer overcame the election eve arrest of his brother, Cameron, and campaign field director Thomas J. Vallely, both then 22, in the basement of a Lowell building that housed the headquarters of Kerry and another Democratic contender, state Representative Anthony R. DiFruscia of Lawrence. It was almost 2 a.m. - 30 hours before the polls opened - when the two were arrested on charges of breaking and entering with intent to commit larceny. That day's Sun blared a memorable, double-deck headline: "Kerry brother arrested in Lowell `Watergate."' DiFruscia, getting some extra ink in the campaign's...