Fifty years ago, in the fall of 1957, two thirteen-year-old boys were enrolled at an elite, boys-only New England boarding school. One of them, descended from wealth and eminence, would go on to Yale, then to a career as a navy officer and Vietnam war hero, and finally to the U.S. Senate, from where he would fall just short of the White House. The other was a scholarship student, a misfit giant of a boy from a Pennsylvania farm town who would suffer...