To be honest, there’s room for reasonable minds to differ on what natural-born means.
In practice, it seems to mean native born.
There are certainly other views. However from a practical standpoint it would seem the legal position is that native born is in fact the legal requirement.
Which makes Marco Rubio constitutionally eligible for the job.
Moreso that Obama, or arguably even John McCain...
No, it's quite simple.
Natural born means your a citizen because of the nature of your birth.
You can only inhert it from your parents...just as you do their hair or eye color.
If they are not citizens at that point in time, you cannot be natural born.
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As far as jus soli citizenship goes; it is IMHO that the blatant misinterpretation of the Intent of the 14th Amendment is the only thing that has given native born citizenship any type of viability.
A citizen of the United States at birth is NOT the same thing as a natural born citizen.
Even Vattel knew the difference.
The country of the fathers is therefore that of the children; and these become true citizens merely by their tacit consent. We shall soon see whether, on their coming to the years of discretion, they may renounce their right, and what they owe to the society in which they were born. I say, that, in order to be of the country, it is necessary that a person be born of a father who is a citizen; for, if he is born there of a foreigner, it will be only the place of his birth, and not his country.
Law of Nations
No issues at all. Born to two US citizen parents in a US territory.