Wednesday, April 01, 2026
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5 Takeaways From Oral Arguments on Universal Injunctions in Birthright Citizenship Case at the Supreme Court



The Supreme Court heard oral arguments Thursday on whether nationwide injunctions violate the Constitution, after lower courts have issued 40 nationwide injunctions against the second Trump administration.

โ€œUniversal injunctions exceed the judicial power granted in Article III which exist only to address the injury to the complaining party,โ€ Solicitor General D. John Sauer argued.

The case, Trump v. CASA, concerns nationwide injunctions that lower court judges have ordered, pausing President Donald Trumpโ€™s order interpreting the 14th Amendment as not guaranteeing what is known as โ€œbirthright citizenship,โ€ the idea that if someone is born in the U.S. to alien parents (who are not foreign diplomats or enemies in a hostile occupation), they are immediately a citizen.

Critics of birthright citizenship note that the 14th Amendment states, โ€œAll persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside,โ€ Emphasis added. โ€œSubject to the jurisdiction thereofโ€ did not apply to aliens who enter the U.S. and then give birth in America, they say, because non-Americans are subject to the jurisdiction of their home countries.

Supporters of birthright citizenship note that the U.S. has extended citizenship to children of aliens born in the U.S. for more than 100 years.

The Supreme Court arguments did not focus on the birthright citizenship issue, but rather the legality of lower courts issuing injunctions that apply to the entire country. Many of the groups filing the lawsuits that result in the injunctions had a great deal of influence in the Biden administration, as noted in my book, โ€œThe Woketopus: The Dark Money Cabal Manipulating the Federal Government.โ€

New Jersey Solicitor General Jeremy Feigenbaum argued in favor of the legality of universal injunctions, claiming that an injunction that only applied to New Jersey would not address the issues in the case.

Kelsi Corkran, Supreme Court Director at the Institute for Constitutional Advocacy and Protection at Georgetown University, represented immigration groups.

Sauerโ€™s Argument Against Universal Injunctions

While judges have the authority to issue temporary injunctions to protect one of the parties in a case from harm while the court considers the case, the Trump administration claims the judges have abused this power, claiming to protect people across the country who arenโ€™t parties to the suit.

Sauer noted that courts have issued 40 universal injunctions against the federal government, including 35 from the same five judicial districts.

He argued that these injunctions โ€œprevent the percolation of novel and difficult legal questionsโ€ through the normal legal process. He also argued that โ€œthey encourage forum shopping,โ€ that is, parties filing lawsuits in certain areas, seeking friendly judges who will issue injunctions on their behalf. He further argued that they circumvent Rule 23, the process by which plaintiffs apply for class action.

โ€œThey create what [Supreme Court] Justice [William] Powell describes as repeated and essentially head-on confrontations between the life-tenured and representative branches of government,โ€ Sauer added, referring to a justice who served from 1972 to 1987.

The History of Universal Injunctions

Justice Clarence Thomas asked Sauer about the history of universal injunctions, and the solicitor general pointed to 1963 as the first example.

โ€œWe survived until the 1960s without universal injunctions?โ€ Thomas asked.

โ€œCorrect,โ€ Sauer responded. โ€œThose were rare in the 1960s. It exploded in 2007. The Ninth Circuit started doing this with a bunch of cases involving environmental claims.โ€

The solicitor general noted that โ€œthe court consistently said you have to limit the remedy to the plaintiffs appearing in your court.โ€

In response to questions from Justice Brett Kavanaugh, Sauer brought up the history of President Franklin Delano Rooseveltโ€™s New Deal, where โ€œthere were passionate challenges to nationwide policies,โ€ but when judges held New Deal policies illegal, they issued โ€œhundreds of injunctions protecting individual plaintiffs.โ€

New Jersey Solicitor General Jeremy Feigenbaum cited the English common law practice of a โ€œbill of peace,โ€ which judges used to settle multiple related claims against a defendant in a single lawsuit. The practice allowed the court to bind all members of a โ€œmultitudeโ€ with the outcome, even if they didnโ€™t directly participate in the lawsuit. Sauer argued that a โ€œbill of peaceโ€ most resembles class-action lawsuits, not universal injunctions.

Feigenbaum also cited cases from before the 1960s, which Sauer claimed do not represent universal injunctions.

Corkran argued that if the court ruled in Trumpโ€™s favor, it would reject โ€œthe status quo all three branches of government have ratified and operated under for over a century,โ€ warning that โ€œcatastrophic consequences would result for the plaintiffs and our countryโ€ if the government can โ€œexecute an unconstitutional citizenship-stripping scheme simply because the court challenges take time.โ€

Alternatives to Universal Injunctions

Sauer argued that judges have alternatives to universal injunctions, such as class-action lawsuits.

Feigenbaum noted many practical considerations that would make unworkable an injunction that only applied to New Jersey.

He noted that if children of illegal aliens donโ€™t have U.S. citizenship in other states but do gain it when they move to New Jersey, that introduces serious problems with New Jerseyโ€™s legal obligations to provide benefits, such as Medicaid, to citizens.

โ€œThey did not get Social Security numbers because they would not have been eligible for the enumeration at birth,โ€ Feigenbaum said. โ€œThey are going to arrive and seek benefits that we administer. Federal law requires that they have Social Security numbers for the administration of these benefits.โ€

Elena Kagan Taunts Sauer

Justice Elena Kagan taunted Sauer, noting that many judges have ruled against the Trump administration.

โ€œThis is not a hypothetical. This is happening. Every court ruled against you,โ€ she said.

Sauer argued, however, that nationwide injunctions encourage โ€œforum shopping,โ€ so the success of nationwide injunctions in courts that plaintiffs target because judges are more likely to side with them may illustrate bias, as well as legal concerns.

Good for the System?

Justice Ketanji Brown Jackson, President Joe Bidenโ€™s appointee, suggested that universal injunctions might be healthy for the judicial system.

โ€œIt seems to me that when the government is completely enjoined from doing the thing it wants to do, it moves quickly to appeal that,โ€ bringing the case to the Supreme Court.

Sauer responded that the courts are supposed to work more slowly, methodically considering cases and not rushing them through emergency dockets to the Supreme Court. The โ€œpercolationโ€ of cases through lower courts up to the Supreme Court is โ€œa merit of our system, not a bad feature of our system,โ€ he responded.

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