In 2008, California passed Proposition 8 banning gay marriage in the constitution. In 2010, Judge Vaughn Walker ruled this amendment unconstitutional and over turned Prop. 8 but the opponents to marriage equality appealed.
In February, the Ninth Circuit Court of Appeals, a panel of three judges, agreed with the Vaughn Walker' decision.
Today, the opponents wanted an en banc review to require a judicial evaluation by the full Ninth Circuit Court of Appeals, approximately a dozen appellate judges. The Ninth Circuit Court of Appeals have decided to not grant it.
According to Associated Press, Proposition 8 sponsors now have 90 days to petition the Supreme Court to review the finding that the ban violates the civil rights of gay men and lesbians in California.
If the Supreme Court refuses to take up the case and lets the appellate ruling stand, same-sex marriages could be legal again in California by the end of the year.
If at least four justices agree to accept the case, oral arguments would likely be held next spring.