[livius]

He’s a natural born citizen, regardless of where his parents came from or whether they were citizens. The Constitutional provision covering this was explicitly written to cover people who may not have been born in the US (and in fact, nobody could have been born in the US because it didn’t exist prior to the Constitution!) but were residents of what became the US at the time of the adoption of the Constitution.

[YellowRoseofTx]

You need to do more research, you don't have the whole picture. This subject has been discussed here out the wahzoo with reference to back up the argument.

The Constitutional provision covering this was explicitly written to cover people who may not have been born in the US That is not why this amendment was written.

The original citizens were grandfathered in.

[Radix]

Have you ever even read the Constitution?