If President Obama were a student and his 18-month term in the White House his class, he says he would be short of passing by several credits. On CBS Sunday Morning, Obama gave himself an “incomplete” grade. “We still have a long way to go,” Obama said. He then stressed that he understands why his office faces so much criticism. “One of the things when you’re president is folks are going to direct attention when things aren’t going right at you,” he said, before listing his successes: helping save the auto industry, passing health-care reform, and preventing an all-out economic depression.