[Las Vegas Ron]

You post that the author did not indicate parent or parentS.

The decision clearly states parentS

[r9etb]

You post that the author did not indicate parent or parentS. The decision clearly states parentS

Sure: "without reference to the citizenship of their parents."

And, obviously, if the citizenship of the parentS presents no barrier, then even less of a barrier is presented by the case when one parent is a citizen, and the other is not.

And given that this is the scenario under which Obama's citizenship must be considered.... "parent or parents" is the appropriate formulation.