Mission Accomplished

By him: No fundamental change in the race, thanks to a clear plan well executed.   By her: If there is buyer's remorse to be tapped in the Democratic electorate, her performance might have tapped into it.   Mark Halperin's Grades:   Obama B+ Clinton B   Read the full scorecards.   Read Obama's grades on substance, style, offense, and defense here.   Read Clinton's grades on substance, style, offense, and defense here.