John F. Kennedy was born 90 years ago today. I was six and a half years old when he died, so naturally I remember nothing of his presidency. All I know is what I’ve heard and read. How good a president was Kennedy, in your opinion? Suppose he had served out his term or terms. Would he have lived gracefully, à la Gerald Ford, Ronald Reagan, and George Herbert Walker Bush, or disgracefully, à la Jimmy Carter and Bill Clinton?