Trump may flirt with anti-vaxx sentiment or climate denial, etc., but he can't fully support those ideas. They're very niche and he'd lose the centre if he did.
RFK Jr doesn't hold back on those issues. For conspiracy types he is closer to their beliefs than Trump.
The thing is even if AI could do all that (which is doubtful in my life time), you would still need someone to prompt it with something interesting. And CEO types have never had an interesting idea in their lives