Isn't he already the president, well I mean at least pulling all the strings with no repercussions? Mind you the Donvict doesn't seem to have any repercussions yet.
No. Just be a natural born citizen and to have been a resident for the past 14 years. Natural born citizens are those with birthright citizenship, and people who are the children of citizens have birthright citizenship, no matter where they are born.
Elon is a heridatary citizen of Canada, and so would be a natural born citizen of the US if we joined the union.