WASHINGTON -- Rick Santorum, the former Pennsylvania senator who has suddenly become Mitt Romney's top challenger for the Republican presidential nomination, raised a provocative question about Romney's Mormon faith in a 2007 newspaper column:
Would the potential attraction to Mormonism by simply having a Mormon in the White House threaten traditional Christianity by leading more Americans to a church that some Christians believe misleadingly calls itself Christian, is an active missionary church, and a dangerous cult?
His next paragraph began: "Assume for the sake of argument that there are valid considerations."...
