MYRTLE BEACH, S.C. — The Republican campaign for South Carolina turned deeply personal on the eve of Saturday's high-stakes presidential primary, as New York businessman Donald Trump eyed a delegate sweep and his Republican rivals jockeyed for a southern surprise. Texas Sen. Ted Cruz, the son of a pastor, evoked "the body of Christ" in his closing message while fending off allegations of "dirty tricks" in a state where most Republicans identify as evangelical Christians. At the same time, Trump allies took subtle shots at Pope Francis for questioning the Republican front-runner's devotion to Christian principles.