Cardinal Spellman of New York.
According to legend, in 1958, before the Conclave that would elect Pope John XXIII, Cardinal Spellman supposedly hired a boat, filled it with sheep and sailed down the Tiber in an attempt to suggest he would be the fufillment of St. Malachy's prophecy.
I'm unable to verify that however.
Another legend that has been floated is that he was dissapointed Roncalli had been elected Pope John XXIII, and was reported to have said, "He's no Pope. He should be selling bananas."
All I know is Spellman liked Nixon...