Obama's push to tackle income inequality provides any Democratic nominee with a central organizing theme and policy purpose. It also challenges any Republican nominee to either reject government action in that direction, alienating the strong majority of Americans who favor it--or embrace such government action, alienating the Republican base.
While Hillary will most likely be the Democratic nominee, Bernie Sanders is thinking of running as well. His middle class values, outspoken commonsense and experience will capture a lot of attention from far left Democrats. With all those possibilities still pending, I have a couple of words of wisdom for both parties.