He can say anything he wants and get away with it (... and he literally has).
There is some precedent here. Berlusconi in Italy was a similar character (another a-hole media billionaire) who ended up making Italian politics a laughing-stock by grossly mismanaging the running of government. Like Trump, he appealed to fake old-timey values, people were willing to ignore his appalling behavior and character flaws and accept him like some nasty uncle-like figure.
Unfortunately, someone like Trump as president in the USA would be capable of far more damage geopolitically and economically than that clown, Berlusconi, in Italy ever could.
What specific actions do you think Trump would take that'd create so much damage? And are those things more damaging than allowing a corrupt party (see WL emails on DNC on Bernie) to win? To say hey, corruption's OK in the US, even when it's totally public? Or to get people to think that war with Russia, even if in another country, might be OK?
For example, when he says that vaccinations and doctors cause autism [1], how can I tell if he really believes that (which has bad implications for public health under a Trump presidency), or if it is just something over the top?
Same with climate change...how do I tell if he really believes it is a Chinese plot [1] to get us to cripple our economy, or he is just saying something over the top?
If these are just over the top exaggerations for the sake of HIGH ENERGY, and his supporters understand "that these things are over the top, but they agree with the basic sentiment behind them", could you explain just what that basic sentiment is?
[1] https://www.scientificamerican.com/article/trump-comments-on...