I guess this means the campaign fired the poor staffer whose job was to etch everything Obama said into stone:

Sen. Claire McCaskill says Sen. Barack Obama’s commitment to withdraw troops from Iraq has not changed — although the timetable might be adjusted “based on circumstances” in that country. “Barack Obama has never said this is written in stone,” the Missouri Democrat told reporters in Kansas City on Wednesday. “He’s always said ‘I will obviously’ take into account what commanders on the ground say.”