I feel like this has been done. There was an AI generated "debate" between Biden and Trump that was mostly swear words. But it was trained on their speeches and was mostly gibberish and insults.
Edit: It was on Twitch, and users could add inputs and questions.
Back in the 70's and 80's there were "Travesty Generators". You pushed some text into them and they developed linguistic rules based on probabilities determined by the text. Then you could have them generate brand new text randomly created by applying the linguistic rules developed from the source text.
Surprisingly, they would generate "brand new" words that weren't in the original text, but were real words. And the output matched stylistically to the input text. So you put in Shakespeare and you got out something that sounded like Shakespeare. You get the idea.
I built one and tried running some TS Eliot through it, because stuff is, IMHO, close to gibberish to begin with. The results were disappointing. Basically because it couldn't get any more gibberishy that the source.
I strongly suspect that the same would happen with Trump's gibberish. There used to be a bunch of Travesty Generators online, and you could probably try one out to see.
I don't think you need a LLM for that. Back before 'AI' was all the rage, there was a website in French that could generate a double speak/political cant with pretty good accuracy.
It obviously has much more vocabulary, and bigger words than Trump, but I think it could easily be dumbed down to his level.
Then again, it's probably easier to just collect his non sequitur diarrhea and have a script randomly quoting bits of them.
Like, there is no need to waste energy and time on random gibberish. He's already doing all the "work". Just collect these and show them randomly for a braindead experience.
There was a Twitch channel that featured AI Trump and Biden debating. They've changed it to Trump and Kamala now https://www.twitch.tv/trumporkamala2024 might be worth a watch for such content.
Downvotes without representation are, as always, bullshit, so let's clarify: it doesn't take many brain cells to imagine how easily such a thing would (will?) be used to credit that walking cum rot for whatever the"AI" spits out...