Trump just keeps playing the "I'm pissed off with how things have been and it's going to be different with me!!!" card. And the only thing that would be different with him is he'd act like a 3 year old when Congress won't do what he wants. That's honestly the allure of both Trump and Sanders...they both WANT to change so much. But it's not that easy.
American politics is way too big of a machine to just yank to the right or left in a way that anybody would notice a sudden change. My Facebook feed is littered with jokes about the Affordable Care Act all the time, with people failing to realize that it's only in the state its in because Republicans fought it tooth and nail, until it was bastardized into something that wouldn't destroy private health insurance. Oh, I'm sorry...you made Obama and his team go back and change it 12 times before you'd even give it the time of day. No wonder it's not as great as originally planned.
This is just "Yes, We Can!" in 2016. Everybody wants things to get drastically better. But rarely does that happen. I'm all for campaign reform, term limits, and all these other things...but how does that come about when the people who have to pass those laws are the ones those laws would hurt? We can "rah! rah!" and shake our fists all we want. It just isn't happening.