WASHINGTON, D.C. — The Supreme Court issued opinions in four cases on June 29, 2026, ruling on the Federal Trade Commission's removal structure, presidential power regarding Federal Reserve officials, election mail-in ballot deadlines, and cellphone location data privacy. The Court indicated that June 30, 2026, would be the final opinion announcement day for the current term.

In Trump v. Slaughter, the Court ruled 6-3 that the FTC's for-cause removal provision violates the separation of powers, overruling its 1935 decision in Humphrey's Executor v. United States. Chief Justice John Roberts wrote the majority opinion. Justice Sonia Sotomayor authored a dissenting opinion, joined by Justices Elena Kagan and Ketanji Brown Jackson.

In Trump v. Cook, the Court denied the Trump administration's request to remove Federal Reserve System Governor Lisa Cook from office while her challenge to her firing continues. Roberts wrote the majority opinion. Justices Clarence Thomas, Samuel Alito, and Amy Coney Barrett penned dissenting opinions, with Justice Neil Gorsuch joining Alito's dissent in full.

In Watson v. Republican National Committee, the Court held 5-4 that federal Election-Day statutes do not mandate that mail-in ballots be received by Election Day to be counted. Justice Amy Coney Barrett wrote the majority opinion. Justice Samuel Alito wrote a dissenting opinion, joined in full by Justices Clarence Thomas and Neil Gorsuch, and in part by Justice Brett Kavanaugh. The Court also upheld a Mississippi law permitting mail-in ballots to be counted if postmarked by and received within five days of Election Day.

In Chatrie v. United States, the Court ruled that police officers conducted a Fourth Amendment search when they acquired Okello Chatrie's location data from Google, stating that an individual has a reasonable expectation of privacy in cellphone location information. Justice Elena Kagan wrote the majority opinion, and Justice Neil Gorsuch wrote a concurring opinion. Justices Samuel Alito and Amy Coney Barrett filed dissenting opinions.

The Court refused to revive a $300 million defamation lawsuit filed by attorney Alan Dershowitz against CNN regarding coverage of remarks he made while defending President Donald Trump during his 2020 impeachment. Justice Clarence Thomas dissented from the denial of the appeal, in an opinion joined by Justice Neil Gorsuch. The Court also denied a petition for review concerning New York's repealed mandate for healthcare workers to receive the COVID-19 vaccine. In 2021, the New York Department of Health issued a rule requiring all licensed healthcare workers to be fully vaccinated, leading to a lawsuit from employees who sought religious exemptions that were denied.

Justice Clarence Thomas denied Roy Moore's request to block a U.S. Court of Appeals for the 11th Circuit ruling from taking effect. Moore had contended that the lower court's ruling needed a hold to ensure he could recover the $8.2 million he was awarded by a jury if he ultimately prevailed. The Court also denied President Donald Trump's appeal of a $5 million judgment against him in a case brought by E. Jean Carroll. Eight of the nine Supreme Court justices released their financial disclosures for 2025, while Justice Samuel Alito was granted an extension for his 2025 financial disclosure, to be released later in 2026. The Supreme Court added six cases to its oral argument docket for the 2026-27 term.