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The different paths John McCain and Barack Obama have taken to support expanded offshore drilling for oil demonstrate how each would govern as president, their supporters said Sunday. Republican presidential candidate, Sen. John McCain, R-Ariz., center, his wife Cindy, right, and Forida Gov. Charlie Crist, stand together during a news conference, Friday, Aug. 1, 2008 in Panama City, Fla. (AP Photo/Mary Altaffer). Democratic presidential candidate, Sen. Barack Obama, D-Ill., speaks at a campaign stop in Orlando, Fla., Friday, Aug. 1, 2008.