Does the popularity of Trump and Sanders demonstrate the US has a shrinking middle class?

Asked by JLeslie (65444) February 28th, 2016 from iPhone

I was thinking about how I have said for years if the middle class gets smaller and smaller, and more and more people feel they are having less and less and a harder time catching a break, then we risk leaders being voted in who are socialists. That capitalism gone wild without integrity will cause a backlash to the other extreme. The pendulum swings.

Is business baron Trump an attempt to keep the rich rich and the power where it has been? Is Bernie Sanders the cry of the masses who are fed up? Is this election mostly about our economy and our social classes more than anything else?