On May 15, 2008, the Supreme Court of California issued a decision in which it effectively legalized same-sex marriage in California, holding that California's existing opposite-sex definition of marriage violated the constitutional rights of same-sex couples. Same-sex marriage opponents in California placed a state constitutional amendment known as Proposition 8 on the November 2008 ballot for the purpose of restoring an opposite-sex definition of marriage. Proposition 8 was passed on Election Day 2008, as were proposed marriage-limiting amendments in Florida and Arizona. On August 4, 2010, a decision by the U.S. District Court in Perry v. Schwarzenegger ruled Proposition 8 unconstitutional. The decision in that case has been appealed. The case is expected to be ultimately decided by the U.S. Supreme Court. The Supreme Court announced in October 2012 that it would consider whether to accept the appeal in Perry during a private conference scheduled for November 20. The Court later pushed the announcement to November 30. The Supreme Court will hear the case on March 26, 2013.