SAN FRANCISCO (AP) — A conservative legal group asked the California Supreme Court on Thursday to put off finalization of its decision legalizing same-sex marriage until voters got a chance to weigh in.

The Arizona-based Alliance Defense Fund wants the ruling stayed until November, when voters will probably encounter a ballot measure that would amend the state constitution to ban gay marriage. That amendment would overturn the justices' ruling.

In court papers submitted late Thursday, the group warned that the state would suffer "great public harm and mischief" if it began allowing same-sex marriages on June 16, when the court's decision would ordinarily become final.