Trump is far too socially aware to be on the spectrum.
He has a typical billionaire type personality. They are without social fear because they are insulted by the outcomes of social rejection by their wealth.
Nearly all NT humans have a survival mechanism setup as their own personal support network of social, family & work that they have to be careful to maintain. They might have to worry about what they say, losing their social / financial support network, being fired from their job, not being able to afford the rent having no one to help you & ending up on the streets finding your next meal in the trash.
Even millionaire politicians may think along these lines, like ordinary people because even a few million of newly made money may not be enough to overcome this psychological fear.
But billionaires, especially if born into it have reached social fear escape velocity. They truly don’t care; someone will always be their friend & if not they will simply buy them. They don’t have to worry about upsetting a boss, or the consequences of rejection so are truly free to say what they want.
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"The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends upon the unreasonable man."
- George Bernie Shaw