Tamer Mahmoud, et al., Petitioners v. Thomas W. Taylor, et al.

Parents sued a Maryland school board for eliminating the ability to opt their elementary-aged children out of curriculum featuring LGBTQ+ storybooks, arguing the mandatory instruction violated their religious rights. The Supreme Court held that the no-opt-out policy unconstitutionally burdened the parents' free exercise of religion by substantially interfering with their ability to guide their children's religious development.