NEW : What 's left of Isaac is headed toward the Ohio River Valley . The same department noted more than 160,000 gallons of diesel and 138,000 gallons of unleaded fuel had been requested by hospitals , law enforcement agencies and other emergency operators . Mississippi : Mississippi lake 's levels are dropping , so a breach may not be necessary . Romney says his first trip was to ` ` to learn and ( draw ) attention '' to America 's plight . Obama , who will visit Monday , says the federal government will help those suffering .
NEW : What 's left of Isaac is headed toward the Ohio River Valley . Mississippi : Mississippi lake 's levels are dropping , so a breach may not be necessary . Romney says his first trip was to ` ` to learn and ( draw ) attention '' to America 's plight . Obama , who will visit Monday , says the federal government will help those suffering .