In all the obits published and specials aired this week, Chappaquiddick gets a few paragraphs, a few minutes, a tidy recapping of the events of July 19, 1969: The married Ted Kennedy, driving late at night with young campaign aide Mary Jo Kopechne, pitches off a bridge and into the water below. He escapes; she drowns. He does not report the accident for 10 hours. He pleads guilty and gets a suspended sentence, two months in jail. In most of these narratives, Chappaquiddick is told as Ted's tragedy, the thing that kept him from ever becoming president. And in these...