Justice Samuel Alito authored the majority opinion upholding the government's right to turn back migrants at the border before they can apply for asylum, then sat through a 35-page oral dissent from Justice Sonia Sotomayor warning that "more people will die." When she finished, he made clear he was not impressed.
The exchange on the final day of the Supreme Court's 2024, 25 term put the sharpest ideological fault line on the bench into plain view. In Mullin v. Al Otro Lado, the court held that the practice known as "metering", capping the number of people who can seek asylum at a port of entry on any given day, is lawful under federal statute. Sotomayor chose the rare step of reading her entire dissent aloud. Alito chose to respond.
The ruling affirmed that the federal government may turn back migrants stopped at the U.S. border before giving them a chance to file an asylum claim. Federal law allows migrants to seek protection once on American soil regardless of how they entered. But the majority found that metering, physically limiting access to ports of entry, does not violate that right, because the migrants have not yet reached U.S. soil.
Alito, a George W. Bush appointee, wrote three of the four majority opinions the court issued that day. From the bench, he noted that the metering policy had been used by both a Democratic and a Republican presidential administration, a point that undercuts the left's framing of the practice as uniquely tied to the current White House.
That distinction matters. If metering were the invention of a single administration, its opponents could cast it as a political choice. The fact that administrations of both parties employed it suggests something closer to operational necessity at an overwhelmed border.
Reading a full dissent from the bench is not standard practice. Justices typically summarize. The gesture is reserved for moments when a justice wants to signal deep objection, a judicial exclamation point. Sotomayor delivered all 35 pages.
In her written dissent, she warned plainly:
"The consequences of today's decision are predictable. More people will die."
She continued:
"More people will turn back and be subjected to violence because of something they cannot or should not have to change about themselves, such as their race, religion, nationality, or political opinion."
From the bench, she described the majority opinion as "egregiously wrong," The Hill reported. Whether she gave her colleagues advance notice that she planned to read the dissent in full remained unclear. Supreme Court etiquette generally calls for a heads-up, but it was not immediately confirmed whether Sotomayor followed that custom.
The confrontation echoed a previous clash in which Alito rebuked Justice Ketanji Brown Jackson for what he called an "irresponsible" partisanship charge, another moment where the court's ideological divide spilled into open, personal friction on the bench.
As Sotomayor read, Alito's body language told its own story. The Hill described him rocking back and forth in his chair, leaning forward, propping his chin in his hands, staring at the ceiling, and scowling. He sat through all of it.
When she finished, he spoke. He told those present that "there's much more I would have added" had he known she intended to deliver the full dissent aloud. He urged anyone listening to read his complete majority opinion. Then he pulled back: "I won't add anything more to that."
The restraint was itself a statement. Alito signaled that Sotomayor's dissent warranted a longer rebuttal than he was willing to give from the bench, but that the written opinion spoke for itself. It was curt, controlled, and pointed.
The dynamic between the court's conservative and liberal wings has produced several sharp exchanges this term. In a separate case earlier in the session, the court backed the Trump administration on green card enforcement in a 6-3 ruling that drew a fierce dissent from Justice Jackson, part of a pattern in which the liberal justices have used dissents to make political arguments that read more like op-eds than legal analysis.
The asylum case was not the only ruling that landed Thursday. Alito also authored the majority opinion allowing the Trump administration to revoke Temporary Protected Status for migrants from Haiti and Syria, ending their immunity from deportation. That decision gives the executive branch broader authority to wind down protections that were originally granted on a temporary basis but had, in practice, become indefinite.
The court also issued a ruling limiting the use of nationwide injunctions to halt executive actions, a tool that lower-court judges, particularly those in friendly jurisdictions, have used aggressively to block administration policies. And in a separate case, the justices ruled in favor of allowing parents in a Maryland school district to opt their children out of lessons featuring LGBTQ-themed books.
Sotomayor read dissents from the bench in at least two of those cases, making Thursday an unusually combative close to the term. The immigration and asylum rulings, taken together, represent a significant win for the Trump administration's border enforcement framework.
Alito's role in the metering case also fits a broader pattern. He has repeatedly challenged arguments rooted in racial-bias claims in immigration disputes, pressing attorneys and fellow justices on whether the legal text supports the sweeping conclusions that progressive advocates draw from it.
Sotomayor's warning that "more people will die" is emotionally forceful. It is also legally beside the point. The question before the court was not whether metering produces hardship, it was whether federal law prohibits it. The majority said no. The dissent substituted moral appeal for statutory analysis, which is precisely the kind of reasoning that erodes public confidence in the judiciary as a legal institution rather than a political one.
The metering policy exists because the border's physical and administrative capacity is finite. Ports of entry can process only so many claims per day. Pretending otherwise does not help the migrants Sotomayor says she wants to protect, it just produces chaos at the points of entry and incentivizes illegal crossings between them.
Alito's observation that both Democratic and Republican administrations used metering is the fact that should end this debate. When officials of both parties reach the same operational conclusion, the practice is not partisan cruelty. It is governance.
The broader trajectory of this term's rulings reflects a court that is, at last, drawing clearer lines around executive authority on immigration. In another 6-3 decision this term, the court restricted foreign human rights lawsuits while Sotomayor again objected, a recurring posture that suggests her dissents are less about individual cases than about a running campaign to reframe enforcement as injustice.
There is nothing wrong with a justice dissenting. The practice serves a vital function: it preserves a legal counter-argument for future courts and signals to the public that a question was genuinely contested. But reading a 35-page dissent aloud, every word, every page, is not legal argumentation. It is theater.
Sotomayor's choice to do so in an immigration case, on the final day of the term, with cameras rolling and reporters watching, was designed to produce exactly the headlines it produced. The substance of the majority opinion, that a bipartisan border management tool is lawful, gets buried under the drama of a justice predicting death from the bench.
Alito's response was the right one. He kept it short. He pointed people to the written opinion. And he moved on.
When one side of the bench argues the law and the other side argues feelings, the law should win every time, and on Thursday, it did.