Calif. gay marriage ban oallenged in court

LOS ANGELES (AP) - Gay legal groups have asked California's highest court to overturn the same-sex marriage ban approved by the state's voters.

The petition filed Wednesday asks the Supreme Court to invalidate Proposition 8 on the grounds that voters did not have the authority to make such a dramatic change in state law. It argues that the measure revised, rather than amended the California Constitution, and therefore first should have been submitted to the state Legislature.

The Supreme Court refused to hear a petition making similar claims in June, when gay rights activists tried to get Proposition 8 struck from the ballot.

Two married women say they plan to sue, arguing that the amendment is unconstitutional because it violates their rights to equal protection under the law.