vote in a 5–3 decision to stay an execution. On February 7, 2019, Roberts was part of the majority in a 5–4 decision rejecting a Muslim inmate's request to delay execution in order to have an imam present with him during the execution. Also, in February 2019, Roberts sided with Justice Kavanaugh and the court's four liberal justices in a 6–3 decision to block the execution of a man with an "intellectual disability" in Texas. Equal Protection Clause Roberts opposes the use of race in assigning students to particular schools, including for purposes such as maintaining integrated schools. He sees such plans as discrimination in violation of the Constitution's Equal Protection Clause and Brown v. Board of Education. In Parents Involved in Community Schools v. Seattle School District No. 1, the Court considered two voluntarily-adopted school district plans that relied on race to determine which schools certain children may attend. The Court had held in Brown that "racial discrimination in public education is unconstitutional," and later, that "racial classifications, imposed by whatever federal, state, or local governmental actor, ... are constitutional only if they are narrowly tailored measures that further compelling governmental interests," and that this "[n]arrow tailoring ... require[s] serious, good faith consideration of workable race-neutral alternatives." Roberts cited these cases in writing for the Parents Involved majority, concluding that the school districts had "failed to show that they considered methods other than explicit racial classifications to achieve their stated goals." In a section of the opinion joined by four other justices, Roberts added that "[t]he way to stop discrimination on the basis of race is to stop discriminating on the basis of race." Free speech Roberts authored the 2007 student free speech case Morse v. Frederick, ruling that a student in a public school-sponsored activity does not have the right to advocate drug use on the basis that the right to free speech does not invariably prevent the exercise of school discipline. On April 20, 2010, in United States v. Stevens, the Supreme Court struck down an animal cruelty law. Roberts, writing for an 8–1 majority, found that a federal statute criminalizing the commercial production, sale, or possession of depictions of cruelty to animals was an unconstitutional abridgment of the First Amendment right to freedom of speech. The Court held that the statute was substantially overbroad; for example, it could allow prosecutions for selling photos of out-of-season hunting.