Many people continue to be shocked by the Donald Trump victory. I've said since he started his campaign he's the "change" candidate because he is perceived as an outsider. We've essentially had 8 years of Republican policies and 8 years of Democratic policies yet the "average" American feels like they have been left behind. This chart from Ned Davis Research illustrates why so many Americans are fed up with BOTH parties and ready for a change.
There are no easy answers to this, but doing the same thing over and over again will not work. This year's election should serve as a wake-up call that they need to pay attention to the MIDDLE part of the country or they will lose control.