Days after he'd been nominated by Democrats for president in the summer of 1988, while enjoying a double-digit lead in the polls, Michael Dukakis took what he fancied as a Trumanesque whistle-stop train tour. The train dipped into the northeastern corner of Arkansas for one quick depot stop. It wasn't clear why. Maybe he and his advisers surmised as follows: Since Dukakis's National Governors Association pal -- a fellow named Clinton -- was the governor there, then Dukakis might have a shot at those six Southern electoral votes. He didn't. I was plopped on this train and granted an interview...