Here is a quote from "Inglis v. Trustees of Sailor's Snug Harbor" a Supreme Court Decision in 1830. (This is important because John Marshall was the Chief Justice and in agreement):
Nothing is better settled at the common law than the doctrine that the children, even of aliens, born in a country while the parents are resident there under the protection of the government and owing a temporary allegiance thereto, are subjects by birth
Nothing is better settled at the common law than the doctrine that the children, even of aliens, born in a country while the parents are resident there under the protection of the government and owing a temporary allegiance thereto, are subjects by birth
They were deciding an Issue of Article II were they?
The point is moot. Barack is the offspring of Two American Citizens.