Oh...how clever. Did you come up with that on your own?
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Read the LAW again
Yes, lets!
...and the proceedings thereon; and thereupon such person shall be considered as a Citizen of the United States. And the children of such person so naturalized, dwelling within the United States, being under the age of twenty one years at the time of such naturalization, shall also be considered as citizens of the United States.
Children under 21 years become naturalized citizens at the point in which their parents themselves become naturalized citizens by completing the naturalization process and taking the Oath of citizenship.
A naturalized citizen is not the same as a natural born one.
Had Rubio been born AFTER his parents completed the naturalization process, it might have been a different story, but he wasn't so it isn't.
The Supreme Court told us in Wong Kim Ark that NBC is defined outside of the law ... outside of the Constitution. The concept of “citizenship by birth” is defined by the Constitution per the 14th amendment, so there is a legally recognized difference between these terms.