A mile east from the U.S. Capitol, on the eve of the hearing that would transfix a nation, 17-year-old Hollis Howe sliced his steak as he listened to his mother talk about sexual assault. Holly Howe, 45, told him about a young patient who recently came into the emergency room where she works as a nurse. The woman had been found outside her apartment door, wearing a dress but no underwear, recalling nothing from the night. Hours later, after sobering up, “she looks at me and she goes, I think something happened,” Holly Howe recalled to her son and husband,...