Mitt Romney's sudden downgrade from Republican frontrunner to potential also-ran coincided with a massive shift of conservative Christians voters in South Carolina to Newt Gingrich's camp. Why? Many observers trace it to lingering suspicion among evangelicals -- a key Republican constituency -- about Romney's Mormon faith. And that has led some to suggest that Romney needs to make a speech about his Mormonism along the lines of John F. Kennedy's defense of his Catholicism to Protestant leaders during the 1960 campaign.
So could Romney pull a Kennedy? Should he?