This article by Michael LeMieux concerning the issue of the definition of "natural born citizen" is an interesting one, as it lays out the source and thinking behind that particular constitutional requirement for a president:
"There are those that tend to dismiss this stating the Constitution does not define what the term “natural born Citizen” means therefore we will assume it must mean born within the physical United States boundaries vice a naturalized citizen. They would be in error.
.......clip......Throughout the Constitution the writers used the term citizen numerous times but only here did they differentiate a specific classification of citizen even different than a naturalized citizen identified elsewhere. The founders would not have identified a specific kind of citizen unless it was for a specific reason."
"In a correspondence between Benjamin Franklin and Charles William Frederic Dumas, Franklin stated: “I am much obliged by the kind present you have made us of your edition of Vattel. It came to us in good season, when the circumstances of a rising state make it necessary frequently to consult the law of nations.” (Emphasis added) So not only where they familiar with the “Law of Nations” but they consulted it frequently.
The entire article can be read here.It should not be surprising that within Vattel’s Law of Nations the term “natural-born Citizen” was defined as: “The natives, or natural-born citizens, are those born in the country, of parents who are citizens.” (Emphasis added) Notice the plural use for parentage."
There are a lot of people who would have us think that the Constitution is too hard for the general U.S. citizen to read and understand. And that any understanding of it is entangled in 200 years of case law requiring specialists. No. It takes some work but it's OUR Constitution, and we need to reclaim it.