The behavior of Supreme Court justices during oral arguments has long been viewed as a significant indicator of case outcomes. Analysts typically describe the process as a form of legal theater where justices ask pointed questions but rarely change their preliminary decisions based on these exchanges. However, recent analysis, as highlighted in a SCOTUSblog article, suggests that the nature and tone of oral arguments provide stronger clues to the unanimity or division within the court’s pending decisions.
The analysis of six Supreme Court cases from the October 2025 Term, featuring both unanimous and contested decisions, showed distinct patterns in the justices’ questioning style and intensity. In cases that ended in a contested decision, there was a noticeably higher volume of questions and transitions between justices, averaging 93.7 transcript pages per argument versus 73 pages for unanimous cases. Similarly, the instances of justices challenging the advocates’ arguments were more frequent in contested decisions, with an average of 35 skeptical questions, compared to 24 in unanimous cases.
This difference in behavior indicates a deeper interplay at oral arguments in contested cases, where justices actively grapple with divisions among themselves and attempt to resolve key disagreements. In contrast, when arguments are driven by more exploratory and clarification-focused questions, it suggests a movement towards consensus and the search for a common ground.
A justice’s questioning behavior can also hint at their roles in the decision phase. Dissenting justices often ask more questions and display greater skepticism, as illustrated by Justice Ketanji Brown Jackson’s active participation in dissenting judgments. Conversely, the future majority authors tend to focus their questions toward clarifying the path to a coherent judgment, as was noted in Justice Amy Coney Barrett’s approach during Berk v. Choy.
This pattern of oral argument behavior challenges the conventional view that such arguments are purely performative. They can indeed give an early indication of whether the court is likely to reach consensus or issue a split decision. By demystifying this process, legal practitioners can gain deeper insight into the dynamics of Supreme Court deliberations and potentially forecast outcomes with greater accuracy.