The Republicans knew exactly what he was before he was elected in 2016. They knew how dangerous he was and truthfully, they hated him. So, when he was elected in 2016, the Republicans made sure to surround him with people that would not allow him to get out of control. They weeded out a guy like Bannon, who they also knew was dangerous. 

The problem is now, Trump has been made aware of what they did the first time. Stone and Bannon basically have told him over and over that Republicans betrayed him. So, if he gets reelected, the people that surround him have to pass a loyalty test and swear an oath to him...not the country...so he can be totally unhindered this time. 

Trump is a moron, people that worked in his administration knew he was easy to distract and that generally, whomever the last person he spoke to was the one whose advice he would follow...because that was all he would remember. So, they literally would distract him, take paperwork from him that they knew was dangerous for him to see or that he would do something amazingly stupid with. You could make him forget he had things by talking to him about something else. 

Stone and Bannon have told Trump over and over now that this happened and it was a betrayal. So, now Trump is going to surround himself with the biggest morons and nutjobs they can find, so they all do what he tells them...because they all will have no clue what the right thing to do is. So, nobody will be telling him "Sir, that against the law." or trying to protect Trump from his own worse instincts. Trump saw how terrified Kim Jong Un's people were of him and openly told his people "That's what I want." 

This time he will make sure he gets it. It won't be a soft landing. He has been advised to declare the "Insurrection act" the moment he is elected and to deploy the US military onto our streets. So, his intent, seriously, is to take this country hostage this time. It's no joke. 

Not sure what European nations would have in mind as a reaction but they would then have Putin on one side of them, Trump on the other, the US would leave NATO, and Russia would be our new number one ally. Trump loves Putin, he can't stand the French, English, Germans...as far as he is concerned, they all shit on him. He would end the war in Ukraine, which would probably symbolically end with Putin dragging Zelenskyy out into the street and executing him publicly. He would end the situation between Israel and Hamas by telling Netanyahu, "Hey, Bibi, kill 'em all. You want a nuke? I've got plenty. I'll nuke Iran if they make a peep. You can have Syria, Lebanon, whatever you want. Anybody complains, we nuke 'em. Wipe these fuckers out."

We'd have dead kids galore.