[Red Steel]

To my knowledge SCOTUS has not ruled on this, but at the time the US Constitution was ratified having two US citizen parents one or both of whom were themselves dual citizens

To add on to my previous post, as long as the duel citizen's children were born in the US, they can pass on a natural born US citizenship to their offspring.

[Seizethecarp]

“To add on to my previous post, as long as the duel citizen's children were born in the US, they can pass on a natural born US citizenship to their offspring.”

That is my best guess, but we have no on-point SCOTUS ruling to that effect. Given that several NBC definition cases, including Donofrio’s, tried to gain a hearing but failed to get even four justices to hear the case, it is not clear that five justices would support our view. And now we have Thomas appearing to state the the Court is “evading” providing a definition of NBC!