Apparently I'm having some Roman numeral issues today.

Above should have read, Kerry called Pope John XXIII, the architect of Vatican II, Pope Pius XXIII. The Pius pope to which Kerry was referring presumably, was the WWII pope, who was known as Pope Pius XII, whom John XXIII succeeded in the late 50s. Pius XII is the pope who has often been accused of being a Nazi collaborator, largely because of his signing a concordat with Hitler, after it was obvious what Hitler was up to, with his book burnings, etc and after Dachau had started up operations.