“President or a grandmother?” asked Charlie Rose on CBS This Morning, knowing full well that one does not preclude the other. “If you ask her, I think she’d say grandmother,” said Bill Clinton, “but I have found it best not to discuss that issue.” (Sorry, Chelsea.) “My goal is to live to be a grandfather,” he added. “The rest of it’s out of my hands.” Diplomacy, among other things, runs in the family.