Republican presidential candidate Sen. John McCain, R-Ariz., announces there will be changes to the Republican National Convention due to Hurricane Gustav during a media availability outside the Mississippi Emergency Management Agency in Pearl, Miss., Sunday, Aug. 31, 2008. Vice presidential running mate Alaska Gov. Sarah Palin, left, and Marsha Barbour, wife of Mississippi Gov. Haley Barbour listen. (AP Photo/Stephan Savoia) Associated Press