The Supreme Court’s June 30, 2026, 6-3 decision in Trump v. Barbara upheld birthright citizenship under the Fourteenth Amendment’s Citizenship Clause and struck down the executive order, with Chief Justice Roberts authoring the majority opinion joined by Justices Barrett, Kavanaugh (on statutory grounds), and the three liberal justices. Trump publicly signaled an intent to seek rehearing, yet the 25-day filing window closed on July 27 with no petition appearing on the docket. Rehearings of argued cases remain exceedingly rare, last occurring in 1965, and would require five votes including support from justices who joined the majority. With the procedural deadline now long passed and no subsequent filings or extraordinary motions reported, traders assign only a 4.1% chance of a rehearing grant by year-end. Late-breaking procedural maneuvers or new litigation could theoretically reopen the issue, though such paths face steep institutional barriers.