With the choice of devout Catholic Paul Ryan as his running mate, Mitt Romney, a Mormon, has arguably crafted the most religiously unique ticket in presidential history. Both religions have interesting precedent in presidential politics, however, with varying degrees of success. John F. Kennedy was famously the first and only Catholic to be elected president. Less than two months before the 1960 election, JFK addressed the Greater Houston Ministerial Association in a hope to allay fears that the pope would use him as a conduit into American politics. Mitt Romney's father, George, also a Mormon, was a serious Republican candidate...