The list of ways is endless, uncountable, unrepeatable, mind-bogglingly, impossible to sum up. Think: Total Clusterfuck!
So, for instance, see what happens when you put in a Guy whose brain no longer does what a healthy brain does. Hilarity ensues. Maybe tragedy too. I mean, really, really anything is possible.
So maybe the Guy has a meeting with his handlers from a hostile, foreign power, a hostile foreign power that this Guy sort of likes, has a long track record of doing business with, shady folks from this hostile foreign power, and for instance, when no good U.S. bank would lend the Guy $, he found that lots of rich Oligarchs and Gangsters from the hostile foreign power were willing to float him, keep his brand empire running.
Such a nice, friendly, hostile foreign power.
And then, why not, this Guy decides to invite representatives of the hostile foreign power to the Oval Office. He bars the U.S. press, of course, but the Foreign Ministry of the hostile foreign power is welcome, and they bring a photographer along.
Everything is peachy keen. And as a bonus the Guy spills state secrets, classified information that the US hasn't even shared with our closest allies to the hostile foreign power. The Guy is that kind of Guy.
Russia's Puppet, acting like Russia's Puppet?
The Washington Post: "In his meeting with Lavrov, Trump seemed to be boasting about his inside knowledge of the looming threat. “I get great intel. I have people brief me on great intel every day,” the president said, according to an official with knowledge of the exchange."
For a serious, in-depth analysis of what this Guy has done, be sure to read LawFare - stunning!
What can you say? It's good to know How Not to Be President of the USA, right?