I really don't know how far can Trump go. He looks like being locked in some sort of "delusions of grandeur".

And, even worse, he appears to be completely surrounded by people who share the same pathology.

In the last year I've been watching USA closer (not by choice but thanks to the madman they elected) and what I can see is a democracy where Montesquieu theory about separation of powers seems completely unknown. He has full power on army, justice, universities, health and media. He could probably nominate his horse as a senator. Is there any limit to what the president can do to his own country?

He's not just the president, he's the owner of that country.

I had never never never imagined that such a mess could happen in USA.