The diplomat exception is tied to the 14th Amendment’s phrase “subject to the jurisdiction thereof” , not to a separate clause that names diplomats outright. In practice, the exception is found in constitutional interpretation and related federal understanding of that phrase, which has long been read to exclude children of foreign diplomats from automatic birthright citizenship.

Where it comes from

  • The 14th Amendment says: “All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens...”.
  • Courts and commentators have interpreted “subject to the jurisdiction thereof” to exclude children of accredited foreign diplomats.
  • The underlying idea is that diplomats are not fully subject to U.S. legal jurisdiction in the same way ordinary residents are.

Practical answer

If you are asking “where is it found in the text?”, the answer is: in the jurisdiction language of the Citizenship Clause.

If you are asking “where is it recognized legally?”, the answer is: in constitutional interpretation and longstanding practice regarding foreign diplomats.

Small note

The 14th Amendment itself does not use the words “diplomat exception”; that label is shorthand used in legal discussion.

Would you like the exact historical sources that first explained this exception?