SAN FRANCISCO (AP) -- California's same-sex marriage ban faces its next legal test Tuesday when the state's highest court attempts to shed light on whether the voter-approved measure's backers have legal authority to appeal the federal ruling that overturned Proposition 8.

The California Supreme Court is scheduled to hear an hour of arguments on that question, which could prove crucial to the future of the voter-approved ban. The federal appeals court that is considering the initiative's constitutionality wants the state court to weigh in on the matter before it issues its decision.

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