Justice Ketanji Brown Jackson told a stunned courtroom on Wednesday that foreign tourists vacationing in the United States owe "local allegiance" to the American government, and that this relationship should entitle their U.S.-born children to automatic citizenship.
The argument came during oral arguments in Trump v. Barbara, the landmark case that will determine whether President Donald Trump's executive order ending birthright citizenship for the children of illegal immigrants and foreign tourists passes constitutional muster. Jackson, in an exchange with the ACLU's Cecillia Wang, offered what may be the most expansive interpretation of the 14th Amendment ever floated from the bench.
It is worth hearing her reasoning in full, as reported by Breitbart.
"I was thinking about this and I think there are various sources that say this, that you can have — you obviously have permanent allegiance based on being born in whatever country you're from, that's what everyone recognizes. But you also have local allegiance when you are on the soil of this other sovereign."
To illustrate, Jackson offered a hypothetical about visiting Japan:
"I, U.S. citizen, am visiting Japan and what it means is that, if I steal someone's wallet in Japan, the Japanese authorities can arrest me and prosecute me. It's allegiance meaning, can they control you as a matter of law? I can also rely on them if my wallet is stolen to under Japanese law go and prosecute the person who has stolen it. So there's this relationship, even though I'm a temporary traveler, I'm just on vacation in Japan, I'm still locally owing allegiance in that sense."
What Jackson described is not allegiance. It is a jurisdiction. Every first-year law student knows the difference.
When a tourist gets pickpocketed in Tokyo, the Japanese police don't respond because that tourist has sworn fealty to the Emperor. They respond because the crime occurred on Japanese soil. The tourist is subject to Japanese law for the duration of their stay. That is territorial jurisdiction, the basic principle that a sovereign enforces its laws within its own borders. It says nothing about the deeper political bond between a citizen and a nation.
Allegiance, in the constitutional sense that the framers of the 14th Amendment understood it, means something far more substantial. It implies a reciprocal duty between an individual and a political community. The ability to be arrested for shoplifting does not create that duty any more than a parking ticket creates a marriage.
Yet Jackson's formulation would mean that any person physically present on American soil, for any duration, for any reason, has established the kind of allegiance that entitles their offspring to the full privileges of American citizenship. A two-week beach vacation in Miami. A layover at JFK. A business conference in Chicago. All of it, under her logic, creates a constitutional claim to citizenship for any child born during the trip.
The 14th Amendment grants citizenship to "all persons born or naturalized in the United States, and subject to the jurisdiction thereof." That final clause, "subject to the jurisdiction thereof," has always been the contested terrain. It is not decorative language. The framers included it for a reason.
Many leading legal scholars dispute the idea that offering birthright citizenship to foreign nationals with no permanent ties to the country was the intention of the 14th Amendment. The Supreme Court has never explicitly ruled on the issue, which is precisely why Trump v. Barbara matters so much.
President Trump's executive order draws a clear line: children born to illegal immigrants and foreign tourists on U.S. soil should not automatically receive citizenship. The order forces a question the courts have dodged for generations. What does "subject to the jurisdiction thereof" actually mean?
Jackson's answer appears to be: it means nothing. If the mere ability of the police to arrest you satisfies the jurisdictional requirement, then the clause has no limiting function whatsoever. Every human being on American soil, from a diplomat's spouse to someone who overstayed a visa by three years, would qualify. The clause becomes ink on parchment, present but purposeless.
This is not an abstract legal debate. Annually, an estimated quarter of a million anchor babies are born to illegal immigrants and foreign tourists in the United States. That is a quarter of a million automatic citizenships granted each year to children whose parents have no permanent connection to the country, no legal immigration status, and in many cases, no intention of staying.
An entire industry exists around this reality. Birth tourism operations market American citizenship as a product, selling packages to wealthy foreign nationals who fly in, deliver a baby, and fly home with a U.S. passport for their newborn. Meanwhile, illegal immigrants who cross the border unlawfully gain an anchor for future immigration claims through their U.S.-born children.
Jackson's "local allegiance" theory doesn't just preserve this system. It provides it with a constitutional blessing.
It is no surprise that Jackson's expansive reasoning surfaced during an exchange with the ACLU's Cecillia Wang, who is arguing that Trump's executive order is unconstitutional. The ACLU has long treated the 14th Amendment as a blank check, reading it in the most permissive way possible while ignoring the qualifying language the framers deliberately inserted.
The alignment between Jackson's reasoning and the ACLU's litigation position was seamless. Whether that reflects genuine legal analysis or ideological sympathy is a question the reader can answer for themselves.
The Supreme Court's ruling in Trump v. Barbara will set the terms of American citizenship policy for a generation. If the Court adopts anything resembling Jackson's theory, the "subject to the jurisdiction thereof" clause effectively ceases to exist. Citizenship becomes a matter of geographic accident, untethered from allegiance, commitment, or legal status of any kind.
If the Court upholds the executive order, or even signals that the 14th Amendment's jurisdictional clause carries real weight, it opens the door to the most significant reform of citizenship law in modern American history.
The stakes could not be higher. And one of the nine justices deciding the matter just told the country that a vacation creates a constitutional right.
