A demonstrator holds a sign as another wears a cap reading, "Immigrants make America great" outside the U.S. Supreme Court building on the day the court is expected to hear oral arguments on the legality of the Trump administration's effort to limit birthright citizenship for the children of immigrants, in Washington, D.C., U.S., April 1, 2026. / REUTERS/Jonathan Ernst

With President Donald Trump present, U.S. Supreme Court justices signaled skepticism on April 1 toward the legality of his directive to restrict birthright citizenship in the U.S., part of his hardline immigration approach that would upend the long-held understanding of a key constitutional provision.

In his historic visit to the top U.S. judicial body, Trump, wearing a red tie and dark suit, sat in the front row of the public gallery of the ornate courtroom after arriving by motorcade from the White House. The Republican president then left midway through the proceedings not long after the Justice Department lawyer arguing for his administration completed his presentation.

Most of the nine justices, conservatives and liberals alike, grilled the lawyer with questions about the legal validity of Trump's executive order and its practical implications. The court has a 6-3 conservative majority.

Also Read: Indian American leaders back birthright citizenship ahead of hearing

The justices heard more than two hours of arguments in the administration's appeal of a lower court's decision that blocked his directive. Trump's order had instructed U.S. agencies not to recognize the citizenship of children born in the United States if neither parent is an American citizen or legal permanent resident, also called a "green card" holder.

Trump became the first sitting president to attend a Supreme Court oral argument, according to Clare Cushman, the Supreme Court Historical Society's resident historian. Joined by White House Counsel David Warrington, Commerce Secretary Howard Lutnick and Attorney General Pamela Bondi, Trump was at the courthouse for a bit more than an hour and a half.

'PRICELESS AND PROFOUND GIFT'

U.S. Solicitor General D. John Sauer, representing the administration, told the justices that most nations do not grant automatic birthright citizenship.

"It demeans the priceless and profound gift of American citizenship," Sauer said. "It operates as a powerful pull factor for illegal immigration and rewards illegal aliens who not only violate the immigration laws but also jump in front of those who follow the rules."

The United States is among 33 countries with automatic birthright citizenship policies, according to the Pew Research Center. Trump wrote on social media after the arguments that the United States is "STUPID" for having birthright citizenship.

The lower court found that Trump's directive violated citizenship language in the U.S. Constitution's 14th Amendment as well as a federal law codifying birthright citizenship rights, acting in a class-action lawsuit by parents and children whose citizenship is threatened by the directive. 

The 14th Amendment has long been interpreted as guaranteeing citizenship for babies born in the United States, with only narrow exceptions such as the children of foreign diplomats or members of an enemy occupying force. 

The provision at issue, known as the Citizenship Clause, states: "All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States."

The administration has asserted that the phrase "subject to the jurisdiction thereof" means that being born in the United States is not enough for citizenship, and excludes the babies of immigrants who are in the country illegally or whose presence is lawful but temporary, such as university students or those on work visas.

Conservative Chief Justice John Roberts told Sauer that his arguments limiting who qualifies for citizenship at birth seemed "quirky."

Noting that historically the phrase "subject to the jurisdiction thereof" excluded the children of ambassadors or enemies during a hostile invasion, Roberts said Sauer is trying to expand those examples to everyone in the U.S. illegally. 

"I'm not quite sure how you can get to that big group from such tiny and sort of idiosyncratic examples," Roberts said.

Roberts also challenged Sauer to provide evidence for the administration's stated concern over "birth tourism," by which foreigners travel to the United States to give birth and secure citizenship for their children. 

"Do you have any information about how common that is or how significant a problem it is?" Roberts asked. 

"No one knows for sure," Sauer replied, while citing media reports of birth tourism companies abroad. 

The 14th Amendment was ratified in 1868 in the aftermath of the Civil War of 1861-1865 that ended slavery in the United States, and overturned a notorious 1857 Supreme Court decision that had declared that people of African descent could never be U.S. citizens.

Liberal Justice Elena Kagan said the administration's interpretation of the 14th Amendment is not supported by the provision's text.

"You're using some pretty obscure sources to get to this concept," Kagan told Sauer.

American Civil Liberties Union attorney Cecillia Wang, arguing for the challengers, told the justices Trump's order was unlawful.

"Ask any American what our citizenship rule is and they will tell you, 'Everyone born here is a citizen, alike,'" Wang said. "That rule was enshrined in the 14th Amendment to put it out of the reach of any government official to destroy."

THE TARIFFS RULING

Trump has repeatedly criticized certain members of the court since it struck down on February 20 sweeping global tariffs he imposed last year under a law meant for national emergencies, going so far as to say he was "sickened" by two justices he appointed during his first term - Neil Gorsuch and Amy Coney Barrett - and called them "an embarrassment to their families."

Limiting who qualifies for citizenship at birth is a top priority for Trump, who issued the order last year on his first day back in office as part of a suite of policies to crack down on legal and illegal immigration. Critics have accused him of racial and religious discrimination in his approach to immigration. 

The administration has argued that citizenship is granted only to the children of those whose "primary allegiance" is to the United States, including citizens and permanent residents. Such allegiance is established through "lawful domicile," which lawyers for the administration define as "lawful, permanent residence within a nation, with intent to remain."

Several justices probed this definition. 

"Whose domicile matters?" Gorsuch asked Sauer. "Is it the husband? Is it the wife? What if they're unmarried?"

Gorsuch added: "How are we going to determine domicile? ... Do we have to do this for every single person?"

Barrett cited other examples, including how to determine parents' intent to remain in the U.S., noting that in some cases the parents of a child are unknown. 

"How would it work? How would you adjudicate these cases? You're not going to know, at the time of birth, for some people, whether they have the intent to stay or not, including U.S. citizens by the way," Barrett said.

The challengers argue the Supreme Court already settled the question of birthright citizenship in an 1898 case called United States v. Wong Kim Ark, which recognized that the 14th Amendment grants citizenship by birth on U.S. soil, including to the children of foreign nationals.

Gorsuch signaled that he does not think Trump's position can be squared with that 1898 precedent.

"I'm not sure how much you want to rely on Wong Kim Ark," Gorsuch told Sauer.

Gorsuch also pointed out that the Supreme Court member who dissented in that ruling, Justice John Marshall Harlan, later said it covered even children of temporary visitors.

Conservative Justice Samuel Alito, posing a hypothetical scenario, asked Wang to address the administration's argument that birthright citizenship should be understood in light of an 1866 civil rights law that excluded citizenship for those who are "subject to any foreign power." 

"A boy is born here to an Iranian father who has entered the country illegally. That boy is automatically an Iranian national at birth, and he has a duty to provide military service to the Iranian government," Alito said in his hypothetical situation. "Is he not subject to any foreign power?"

The administration contends that the 1898 precedent supports Trump's order because, according to the court's ruling in that case, at the time of his birth, Wong Kim Ark's parents had permanent domicile and residence in the United States. 

FAR-REACHING EFFECTS

An eventual ruling by the Supreme Court endorsing the administration's view could affect the legal status of as many as 250,000 ‌babies born each year, according to some estimates, and require the families of millions more to prove the citizenship status of their newborns. 

Alito said the authors of the 14th Amendment could not have conceived of modern-day immigration patterns.

"What we are dealing with here is something that was basically unknown at the time when the 14th Amendment was adopted, which was illegal immigration," Alito said.

Concord, New Hampshire-based U.S. District Judge Joseph Laplante let the challenge to Trump's order by these plaintiffs proceed as a class, allowing the policy to be blocked nationwide. 

The Supreme Court has backed Trump on other major immigration-related policies since he returned to the presidency. It is expected to rule by the end of June.

 

 

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