Bob Jones III, chancellor of the fundamentalist South Carolina university that bears his family’s name, has become the latest conservative Christian leader to publicly cast doubt on President Barack Obama’s stated Christian commitment. "I've no reason to think he's a Christian,” Jones told National Journal in an interview published Saturday. “Anyone can say he's a Christian. “Some people will say whatever they think the politically helpful thing would be,” Jones said. “I say, 'Where is the evidence that he is a Christian?' " Jones is an influential conservative leader in South Carolina, home to one of the nation’s key Republican...