On June 20, 2008, gay rights groups filed suit before the California Supreme Court seeking to remove the initiative from the November ballot; their lawsuit was later dismissed on July 16, 2008. They argued that the changes would constitute a revision to the California Constitution, which requires a two-thirds vote of the Legislature before being placed before voters, rather than a mere amendment, which does not require involvement by the Legislature. They further argued that the original petitions, which were circulated before the May 15 court decision, were misleading because the petitions said the initiative would not change the marriage laws and would have no fiscal impact.