There's a quote in the article I found interesting:
“Many people think that it is impossible,” he said. “Many smart people close to me have argued that such agreement can’t be achieved. I don’t agree with them. I think we can reach an agreement and that we need to reach an agreement,” Trump said.
The smart people he's talking about are probably GOP establishment types, and they're arguing to him that a peace deal can't be achieved. Not that it shouldn't, and that there's no Palestinian people. They're right that it can't be achieved, but I don't think Trump has more malice toward Israel than establishment Republicans like Romney or McCain, who JTF supported previously.
Presidents have checks and balances to prevent them from becoming dictators, but they can use the bully pulpit as much as they want, and that's something that many voters understood Trump was willing to take advantage of. He says "Islam hates us", "there's a Muslim problem", "Muslim immigration should be stopped", etc. The political transition that's happening in America is going to start off rocky.
Ted Cruz isn't selling out by supporting the Trump movement. He and some other Trump supporting politicians understand that you can't change anything without getting involved. You have to roll with the punches. Someone smart said that to Chaim once. Trump makes mistakes, but they're not intentional Obama-style mistakes. Trump isn't closed off to the truth, and you have to take advantage of that to tell him stuff like how there isn't any historical Palestine.