Being Jackie, though, she never raises her mellifluous, Atlantic-accented voice, even while reprimanding her son. "Only one of us knows what it's like to marry into this family," she reminds him. "There isn't enough exposure in the world to prepare a woman to be your wife." A marriage to a Kennedy is not a partnership but a trade-off: Any woman who agrees to marry John will have to orbit him, give her life for his.