Mr Unger's comments seem to be politically to the left of Mr Obama, but he insists that the Republicans would be no more destructive than the Democrats as 'the risk of military adventurism' would remain the same.
And some would doubtless strike a chord with the President's GOP opponents, including the academic's attacks on Mr Obama's efforts to reform healthcare.
Mr Unger argues: 'He has subordinated the broadening of economic and educational opportunity to the important but secondary issue of access to health care in the mistaken belief that he would be spared a fight.'
He also suggests that, despite their fierce rivalry, the Democrats' agenda is little different to that of the Republicans, saying the party aims 'to put a human face on the programme of its adversaries'.
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