Ok, then.
Article II, Section 1 states that “No Person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President; neither......”
Why did the framers insert “or a citizen of the United States, at the time of the Adoption of this Constitution.” Surely citizens at the time of the adoption of the Constitution are part of the first part of the sentence. Or were they?
Before 4 July 1776, they were British citizens. They specifically exempted themselves because they were natural born British citizens, not natural born U.S. Citizens and knew they were not eligible to become president. I see proof positive that the framers understood one can not be a natural citizen of two countries because his loyalties would be split.
You’re adding your own definition of Natural Born Citizen.
Not the legal definition.
This might help - http://legalinsurrection.com/2013/09/natural-born-citizens-marco-rubio-bobby-jindal-ted-cruz/