The GOP candidate tells Fox News that the convention may be trimmed, altered or even suspended for a day or two due to the storm.
McCain: "It wouldn't be appropriate to have a festive occasion while a near tragedy or a terrible challenge is presented in the form of a natural disaster." Watch video above.
Full interview to air on Sunday's "Fox News Sunday."
Meanwhile, the evacuation grows from Louisiana as Gustav strengthens to a Category 4 hurricane.
