You guys need to TELL us the official definition of NBC.
“The Constitution does not, in words, say who shall be natural-born citizens. Resort must be had elsewhere to ascertain that. At common-law, with the nomenclature of which the framers of the Constitution were familiar, it was never doubted that all children born in a country of parents who were its citizens became themselves, upon their birth, citizens also. These were natives, or natural-born citizens, as distinguished from aliens or foreigners.” Minor v. Happersett, 88 U.S. 162, 168.
But you already knew that.
Right after you find the definition of “is” in the Constitution.