Is Trump Tapping Into Disaffected Feelings?

I completely agree that there is a disaffected group who wasn't getting heard about a lot of things that really mattered to them, and that we're tapping into that. But my gosh, it comes at an enormous cost to a lot of other people. And these leaders who do it are primarily self serving. So i would love to get your sense about this in the longer run. Is this the trajectory of the world for the next ten or 20 years, or is it a blip?