Carter served as US President from 1977 to 1981. His foreign policy had some success—he mediated the Camp David Accords between Israel and Egypt and signed a treaty with Panama regarding control of the Panama Canal—but his domestic policy was less effective, and oil-related inflation and unemployment hurt his bid for re-election. He has since been active in human-rights causes and was awarded the Nobel Peace Prize in 2002. In 2007, Carter earned a Grammy Award for best album in what category? Discuss