It's seriously scary what he's doing to the US democracy.
Several people here have described his behaviour as "Mafia-like" and it's not a bad description, although, also as previously mentioned, even the Mafia have their own twisted code of honour where he has none at all.
I don't think that the leaders of countries like ours truly understand what's going on here. I think Trump has plans for there to be 3 spheres of influence in the future - USA, Russia and China. Europe isn't part of his calculation and neither are middle countries like ours. He wants to basically carve up the world like the old time empires (think England, Portugal and Spain) did.
Some countries to be taken over directly by this trio - he's already made quite clear he wants Greenland and Canada, for a start - Russia would like not only Ukraine but then the other ex-soviet countries, and then, who knows - parts of Western Europe? And China of course will start with Taiwan and then maybe proceed southward in the Pacific.
Any countries not directly taken over will be treated as lesser partners, always on the worse end of any trade deal and subject to any whim of Emperor Trump.
We cannot treat the USA as a "special ally" any more. We are not under their protection, if someone invaded us they are under no obligation whatsoever to protect us and wouldn't unless it suited their interests. And watching what he's doing with Ukraine, he'd probably want all our uranium or rare earth minerals in return for "stopping" the war by giving the aggressor whatever they wanted.