The U.S. Supreme Court is deliberating the future of birthright citizenship following oral arguments in Trump v. Barbara.
On April 1, 2026, the U.S. Supreme Court heard oral arguments on the birthright citizenship case, Trump v. Barbara. The discussion was lively and the Justices’ questions probing. But do the oral arguments suggest that birthright citizenship will be restricted? Or is the Court likely to side with those who challenge the President’s executive order as unconstitutional. Below, we share our take.
- The case Trump v. Barbara challenges a presidential executive order restricting birthright citizenship, which conflicts with the clear text and long-standing precedent of the 14th Amendment.
- During oral arguments, multiple Justices, including Chief Justice Roberts, expressed skepticism about the government’s originalist and policy-based defenses of the executive order’s legality.
- Observers widely expect the Supreme Court to strike down the order, preserving existing birthright citizenship, while noting how fringe arguments have moved closer to the legal mainstream.
Background of Trump v. Barbara
On the first day of Donald Trump’s second term, he signed an executive order that restricted birthright citizenship in the United States only to those born to a U.S. citizen or permanent resident. The intention of the executive order was to end citizenship being granted to those who are born in the U.S. to parents who are either undocumented or on temporary visas.
As we wrote at the time the executive order was issued, legal experts largely agreed that Trump’s executive order was illegal, on a number of grounds. Among other things, birthright citizenship is written in the 14th Amendment to the U.S. Constitution, which cannot be changed through an executive order. Also, there is over a century of legal precedent upholding birthright citizenship. Additionally, in the mid-20th century Congress later passed a statute with the same language as the 14th Amendment, showing that it intended to preserve the understood meaning and practice of granting birthright citizenship as it had been practiced since the 14th Amendment was ratified in 1868. Finally, there is the language of the 14th Amendment and the statute itself, which appear to be clear and not ambiguous.
Legal Challenges in Trump v. Barbara
Soon after the executive order was issued, a number of lawsuits were filed challenging it as illegal. Several courts agreed, resulting in the executive order being enjoined. One such case was filed in New Hampshire by the American Civil Liberties Union (ACLU), which represented a class of families affected by the executive order. That case used a pseudonym for the plaintiffs: “Barbara.” After the federal court in New Hampshire enjoined the executive order, the Trump administration appealed to the Supreme Court.
Oral arguments were held before the Supreme Court on April 1, 2026. Solicitor General John Sauer represented the Trump administration and defended the president’s executive order limiting birthright citizenship. Cecillia Wang, the national legal director of the ACLU, represented the families challenging the executive order.
What happened at the oral arguments?
The first notable thing that happened at the oral arguments is that President Donald Trump attended them. This is the first time in recorded history that a sitting U.S. president has attended oral arguments at the Supreme Court. President Trump attended beginning at the start of the oral arguments – which began with Solicitor General Sauer’s arguments as to why the executive order should survive – and he left a few minutes into Cecillia Wang’s arguments as to why the executive order is illegal.
The President’s attendance signalled the importance of the case and the seriousness with which he views it. Observers noted that Solicitor General was particularly animated during his presentation. It also must have been nerve wracking for Cecillia Wang to present her case not just before the Supreme Court Justices, but also a few feet in front of the President. However, it does not seem that the Justices’ questions or the oral arguments were impacted by the President’s attendance.
Upon departing from the Court, President Trump posted “We are the only Country in the World STUPID enough to allow ‘Birthright’ Citizenship!” In addition to this not being true (a number of countries have birthright citizenship), many interpreted his post as a sign of his frustration and his suspicion that the Court would decide against his executive order.
What arguments were made by the lawyers at the oral arguments?
Much of the oral arguments were focused on the history of the 14th Amendment to the U.S. Constitution, and the way that the people who drafted that Amendment thought about it at the time it was drafted. This approach to interpreting law is called “originalism” since it asks about the original understanding of the law. The oral arguments also focused on an 1898 Supreme Court case called Wong Kim Ark, in which the Court held that a person born in the United States is a U.S. citizen at birth under the 14th Amendment.
The Government’s Stance on Domicile
Solicitor General Sauer spoke about fairly esoteric historical references that suggested that a concept called “domicile” was important to the drafters of the 14th Amendment, meaning that they did not intend to grant birthright citizenship to individuals who did not enter the country legally, did not consider the U.S. home, and who owed allegiance to a nation other than the United States.
Sauer also cited to certain policy concerns allegedly resulting from the number of people who travel to the U.S. for the purpose of giving birth to a child who is a U.S. citizen. In a notable exchange, Sauer said to Chief Justice Roberts “we are in a new world now,” to which Roberts retorted “Well, it’s a new world. It’s the same Constitution” – suggesting that it is the Court’s job to interpret and apply the Constitution, and not to make decisions based on policy concerns.
The Defense of Birthright Citizenship
Attorney Wang also faced probing questions, even though legal and historical precedent – not to mention the clear language of the Amendment and statute – seem to favor her position. The fact that she received questions from Justice Kagan, a liberal justice, caused some to fear whether the justices might be leaning toward the government’s position. Roberts and Alito questioned Wang about why the word “domicile” appeared so often in Wong Kim Ark, even though she argued that domicile is not a requirement for an individual to receive birthright citizenship.
How did the Supreme Court Justices respond to the arguments made by the lawyers?
The Supreme Court Justices seemed broadly skeptical of the arguments made by Solicitor General Sauer in support of Trump’s executive order. As mentioned previously, Chief Justice Roberts reminded Sauer that changes in the world do not mean that the Court should shift its interpretation of the U.S. Constitution. Other conservative Justices, including Gorsuch, appeared to express skepticism about the executive order’s legality, along with all of the liberal justices.
What is likely to happen after the oral arguments?
Given this, many observers believe that the Court is very likely to side with the challengers and hold that the executive order is illegal. A decision is likely to be issued in June or July of this year. In the meantime, since the executive order is already enjoined, there will be no change – the order will continue to not be in effect, and any child born in the U.S. will continue to be born a U.S. citizen.
Should the Court decide that the executive order is illegal, children born in the U.S. would continue to be born U.S. citizens. Since the executive order was never enforced (since courts quickly enjoined it), this would mean that the executive order’s restrictions were never implemented.
That being said, the fact that the president of the United States would issue such an order calling into question such a fundamental aspect of U.S. citizenship has already caused there to be questions raised about the policy implications and legal basis for birthright citizenship. Even the fact that the justices seriously considered Sauer’s arguments – which only a couple years ago were considered fringe theories – shows how far these arguments have moved toward the mainstream.
Potential Legal Shift and Immigration Impacts
And if the Court sides with the government and decides that the executive order is legal, it would mean a seismic shift in several ways. First, it would end the granting of birthright citizenship to many children born in the U.S., including those born to parents who are undocumented or on temporary visas. Also, it would call into question the citizenship status of children, grandchildren, great-grandchildren, etc. of those who entered the U.S. without authorization in the past – generations of people’s citizenship could be called into question.
Also, such a decision would suggest that an executive order can overturn a Constitutional Amendment and over a century of legal precedent, which could usher in a variety of significant changes and reforms to the United States and its legal system. It is hard to overstate the impact of the Court siding with the government in this case. Fortunately, as of now, that appears to be a very unlikely outcome, since the oral arguments strongly suggest that the Court will rule Trump’s executive order illegal, and will uphold the U.S. Constitution and the understanding we have had of it for the past century or more.
