Mitt Romney returned from a three-week spring break in 1965 to resume his studies as a high school senior at the prestigious Cranbrook School. Back on the handsome campus, studded with Tudor brick buildings and manicured fields, he spotted something he thought did not belong at a school where the boys wore ties and carried briefcases. John Lauber, a soft-spoken new student one year behind Romney, was perpetually teased for his nonconformity and presumed homosexuality. Now he was walking around the all-boys school with bleached-blond hair that draped over one eye, and Romney wasn’t having it. “He can’t look like...