The Supreme Court's Republican majority handed down a landmark decision in Mirabelli v. Bonta, requiring public schools to disclose transgender students' gender identity to parents without the students' consent. The 6-3 ruling struck down a California law protecting student privacy, with all six Republican-appointed justices in the majority and all three Democratic appointees dissenting.

Justice Elena Kagan's dissent highlighted the decision's embrace of 'substantive due process,' a legal doctrine the conservative justices have historically criticized. The ruling raises questions about whether teachers must now report any student behavior that might conflict with religious beliefs, from dietary choices to dating preferences. This marks a significant shift in the Court's approach to LGBTQ+ rights and parental notification policies.

The decision follows last year's Mahmoud v. Taylor ruling, which required advance notice to parents about LGBTQ+ content in school curricula. Legal experts warn the ruling could have far-reaching implications beyond transgender rights, potentially enabling judges to strike down any law based on personal preferences. The decision represents a dramatic departure from the Court's previous skepticism of substantive due process, with all six Republican justices now embracing the controversial doctrine.