Americans are evenly divided on Obama leadership qualities and whether he 's trustworthy . Comment: only 1 in 5 say they fully understand it . Washington ( CNN ) -- War weariness is partly to blame : Three-quarters say U.S. should n't be world 's policeman .
Americans are evenly divided on Obama leadership qualities and whether he 's trustworthy . Comment: only 1 in 5 say they fully understand it . War weariness is partly to blame : Three-quarters say U.S. should n't be world 's policeman .