[Hodar]

You assertion would have merit, if we deleted the first 2 words of Section 1. “All persons” is pretty defitive. IMHO, the term “All persons” means everyone, legal, illegal, blind, dead, living, left-handed, blonde, fast, slow, short, tall, fat, skinny .... pretty much everyone.

[C210N]

So, does “All Persons” apply to a couple from, say, Canada on a weekend holiday into NYC... and she has a baby at a Manhattan hospital?

[VRWCmember]

But the word "AND" means "all persons" who meet BOTH criteria of being born or naturalized in the United States AND subject to its jurisdiction.

According to your assertion that all persons means EVERYBODY regardless of whether or not they are subject to its jurisdiction means that if a family is vacationing in the US and the mother gives birth, then the baby is a US citizen, or if a diplomat present in the US has a baby in the US it is a US citizen rather than a citizen of the country of which the diplomate is a citizen. The author of the citizenship clause argued that this is clearly not the case.