US trade policies have off shored jobs. As a result the middle classes are diminishing. Its into this anger Trump is tapping into.
Billionaires (example Koch brothers) and corporations (wall street, military manufacturers) who donate so generously to politicians expect their own agenda to be executed, above the voters. Trump being a billionaire is "not bought & paid for" by special interests.
US drug wars in Mexico have failed, and NAFTA has added to mass unemployment both in Mexico & US. People flee the chaos in Mexico for US. They work for a pittance, thus keep wages for US workers from rising.
Now corporations want TTIP.
Over half of US budget is earmarked for war! And yet fiscal accounting is non existent, with persistent demands for more money!
US after 1945 got 50% of global resources for a mere 6% of its population.
1991, even the fall of USSR didn't improve US prospects as anticipated. US is a declining super power. Keeping control of NATO, world bank, IMF, & dictating to the EU, is the price US pays to retain its super power status.
But as Trump points out internally US is falling apart.
Watched "Trump Exposes the Inconvenient Truth On Trade" on YouTube
https://youtu.be/8xeIU-7nc60
Watch "Big Media Has Been Waiting For Trump Since 1987" on YouTube
https://youtu.be/cjrqlWeRYs0
And those who think he is a self made billionaire.
Watch "The Real Reason Donald Trump Is Rich" on YouTube
https://youtu.be/3dmV4sFe4Fo
Watch "AMERICAN DREAM DECLARED DEAD IN NEW HARVARD POLL" on YouTube
https://youtu.be/hlg951BUoys
@16.43 explains
1. Racists
2. Those fed up with free trade.
https://www.rt.com/shows/in-the-now-summary/338214-syria-google-us-election/
Over half the US budget is marked for war!
Watch "Donald Trump slams NATO: I can live with breaking up NATO" on YouTube
https://youtu.be/r8DvQAs1V_s
The American dream is dead.
http://www.commondreams.org/views/2016/03/31/changing-politics-free-trade-politicians-are-finally-listening
http://www.washingtonsblog.com/2016/03/democracy-pathocracy-rise-political-psychopath.html
http://www.washingtonsblog.com/2016/03/trump-almost-two-thirds-americans-wrong-torture-makes-us-less-safe.html