https://news.yahoo.com/trump-dismisses-covid-19-booster-184022005.html
It sounds like Trump is now beginning to publicly cast some doubt on the vaccines. He's starting cautiously, by questioning the booster shots, but I suspect (hope) that he will be slowly ramping up the questioning and criticism going forward, from here on out.
I think his son Barron is slightly autistic. I think he likely believes it was the result of vaccines.
I haven't seen anything definitive about him taking a vaccine. I don't see what the point would have been since he supposedly had Covid. The video going around of his doctor talking to the Israelis about the potential for the jab to cause deaths make me believe he probably didn't take the vaccine.
No way to know that