Like the prudent Greek who used to take a reading at his friendly neighborhood oracle before embarking upon crucial projects, New York's Republican Nelson Rockefeller places great faith in predictions. Before his May 4 wedding to recently divorced Margaretta ("Happy") Murphy, he had taken a poll about the possible impact on his presidential chances for next year. The results remained a close-kept secret—but, obviously, they did not prevent Rocky from remarrying.
At the time of that remarriage, Rockefeller was generally considered a hands-down bet for the 1964 Republican nomination. But since then,...