The ballot initiative, Proposition 8, a state constitutional amendment titled "Eliminates Right of Same-Sex Couples to Marry Act", appeared on the California general election ballot in November 2008 and passed with a 52% majority. Support for Proposition 8 was not uncontroversial, with Mormons and The Church of Jesus Christ of Latter-day Saints donating $20 million to campaign for its passage. As for the opposition, the California Supreme Court heard several challenges to Proposition 8 in March 2009, but ultimately upheld the amendment, though the over 18,000 couples that were married in the time before Proposition 8 was passed remained valid.