Who’s says so? Constitution says no such thing.
To be a senator, you must be a citizen.
To be president, you must be a natural-born citizen.
The Constitution says that. There is a clear distinction.
The problem is: the Constitution does not define “nature-born citizen”. There has, of course, been much discussion on this point. Many people point to Vattel’s 18th century book “The Law of Nations” — which was known to the founders — which defines natural-born citizen as someone born in a country, with parents also born in that country.
Because the Supreme Court has not clearly ruled on the issue, it is still somewhat up in the air.
The founding fathers relied on ‘Law of Nations’ by Vattel to frame the constitution. The definition is in ‘Law of Nations’. There are numerous supreme court precedents defining nbc as one born on US soil to 2 USA citizen parents. Historic correspondences by the founders also define nbc as such.
Do some research on your own.
Remember- anybody who is born in USA, to parents who are not Americans, have allegiance to the parents’ country. The founders want to ensure that the president has sole allegiance to USA only.
Look at Marco R, his father was NOT a USA citizen at time of Marco’s birth, so Marco has loyalty to Cuba, and, it shows - he is for amnesty for his people here in USA!