The Supreme Court is set to announce today its decision on whether to re-legalize gay marriage in California. Gays and lesbians were allowed to marry for several months last year until state voters approved Prop. 8, the anti-same-sex marriage initiative. The court today will decide whether Prop. 8, itself, was legal. Gay marriage supporters argue that Prop. 8 was an unlawful revision of the state constitution, but at a hearing earlier this year, the high court appeared to disagree. Since that hearing, however, three more states have legalized gay marriage, Iowa, Maine, and Vermont, thereby giving same-sex marriage backers a little bit of hope. The justices also will decide the fate of about 18,000 marriages involving gay couples last year before Prop. 8 passed.