WASHINGTON (AP) -- The Supreme Court unexpectedly cleared the way Monday for a dramatic expansion of gay marriage in the United States and may have signaled that it's only a matter of time before same-sex couples can marry in all 50 states.

Rejecting appeals from five states seeking to preserve their bans, the Supreme Court effectively made such marriages legal in 30 states, up from 19 and the District of Columbia, taking in every region of the country.

Challenges are pending in the other 20 states.

Almost immediately, exuberant couples began receiving marriage licenses previously denied to them. "This is the dream day," said Sharon Baldwin, a plaintiff in a challenge to Oklahoma's ban, as she and her partner got their license in the Tulsa County Clerk's Office.

Directly affected by Monday's orders were Wisconsin, Indiana, Oklahoma, Utah and Virginia. Officials in those states had appealed lower court rulings in an effort to preserve their bans. Couples in six other states - Colorado, Kansas, North Carolina, South Carolina, West Virginia and Wyoming - should be able to get married in short order since those states would be bound by the same appellate rulings that have been on hold.

While county clerks in a number of states quickly began issuing licenses to gay and lesbian couples, in some other states affected by the court's action officials did not sound ready to give up the fight. However, their legal options are limited.

Monday's terse orders from the court were contained among more than 1,500 rejected appeals that had piled up over the summer. The outcome was not what either side expected or wanted. Both gay marriage supporters and opponents had asked the court to resolve whether the Constitution grants same-sex couples the right to marry nationwide.

The justices did not explain why they decided to leave that question unanswered for now. They may be waiting for a federal appeals court to break ranks with other appellate panels and uphold state laws defining marriage as between a man and a woman. Or they may see little role for themselves as one court after another strikes down state marriage bans.

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