https://supreme.justia.com/cases/federal/us/169/649/case.html
Search for “contemplates two sources of citizenship” on the page. It will take you to the direct quote and citation.
Over and over we hear that the Supreme Court has never made a ruling on “Natural Born Citizen” as defined by Vattel, but if you read the decision and the dissent in this case, you will see that Vattel’s definition was at the core what this case is about.
Those in dissent argue for Vattel’s definition. Those who made up the majority decided against it.
Could the ruling be overturned? Sure, it’s rare but it does happen.
But it is a disingenuous ploy to declare that this hasn’t been handled by the court before.