Not sure if this is already a popular topic, but I stumbled across the Trump - Tesla connection several years ago. If you just review the link I posted and this one it seems likely Dr. Trump benefitted from Tesla's papers, making many discoveries shortly afterwards (helped develop one of the first million volt xray generators, rotational radiation therapy and founded a company to product Van de Graaf generators).

Very curious and always made me wonder if the uncle funded the real estate projects of his brother Fred (father of Donald).