In his 2010 book, Perry referenced the "Lawrence" decision, writing "Texans have a different view of the world than do the nine oligarchs in robes." In 2011, Perry admitted that he did not know about the "Lawrence" decision; when told that the Supreme Court case had struck down Texas's anti-sodomy law, Perry said: "I'm not taking the bar exam [...]I don't know what a lot of legal cases [...] My position on traditional marriage is clear [...] I don't need a federal law case to explain it to me."