There are 5 different Citizenship terms used in the United States Constitution. See the first link below.
Note the reference to Natural Law in the first sentence of our Declaration of Independence.
The Supreme Court of the United States has never applied the term natural born citizen to any other category than those born in the country of parents who are citizens thereof.
Citizenship Terms Used in the U.S. Constitution - The 5 Terms Defined & Some Legal Reference to Same
"The citizenship of no man could be previous to the declaration of independence, and, as a natural right, belongs to none but those who have been born of citizens since the 4th of July, 1776."....David Ramsay, 1789.
A Dissertation on Manner of Acquiring Character & Privileges of Citizen of U.S.-by David Ramsay-1789
The Law of Nations or the Principles of Natural Law (1758)
The Laws of Nature and of Nature's God: The True Foundation of American Law
RE: The Supreme Court of the United States has never applied the term natural born citizen to any other category than those born in the country of parents who are citizens thereof.
What does “PARENTS” mean? One parent or BOTH?
If the latter, then Obama should not have been eligible, but that’s all water under the bridge now.
Excellent research.
And quite correct.