A person who has citizenship based on birth in the US or its territories?

If you are born in any of the 50 US states, you are a full US citizen (e.g. can become a US president).

If you are born in one of the US territories (e.g. Puerto Rico) you are a US national (i.e. can get a US passport) but you are not a full US citizen (e.g. cannot become US president)