You have to wonder, as Dr. Helen Smith suggests:
"Angry voter syndrome"
"In many ways, Obama embodies the American Dream. He speaks of how his mother and grandmother sacrificed to provide him with opportunities they never had.With unemployment far higher than most economists expected when he took office, Obama will need to convince Americans that the dream is still attainable.Two groups hit hard by unemployment — unionized labor and college students — were also among Obama's strongest supporters in his presidential campaign...
"While younger people still support Obama, the longer they go without jobs commensurate with their expensive educations, the less happy they will be."