LYNCHBURG, Va. -- It wasn't exactly the belly of the beast Republican presidential candidate Mitt Romney visited recently on a picture-perfect commencement day at "the world's largest Christian University," but his appearance was a test as to whether the conservative school, founded by the late Jerry Falwell, would embrace a devout Mormon. And Romney passed. The more than 30,000 assembled in Liberty University's stadium to hear his commencement address not only applauded him when he proclaimed that marriage was a relationship between one man and one woman but also when he appealed to a "common purpose" in pursuit of shared...