This is an interesting question. I wonder if children adopted as babies by American parents can be President if they are born in other countries? In no way can you argue Clark Kent was a natural born citizen (the argument to define natural born citizen has gone to the courts more than once, they still need to clarify it better in my opinion. I used to be more familiar with the court cases, but I have forgotten them now) unless we allow for adoption from foreign nations/planets to suffice. However, as I think it through, yes he can be President, because as far as anyone knows his mother gave birth to him. Birth at home. I doubt there was ever any adoption paperwork, she just found him and raised him, he just simply is the son of the Kent’s. Although, if he ran for President they would scrutinize everything, the media would go crazy and the haters would be in an uproar. Still, I think he could pull it off.