SIOUX FALLS, S.D. (AP) — The latest South Dakota reaction over Supreme Court ruling that says gay couples nationwide may marry:

The attorney representing six same-sex couples in a lawsuit challenging South Dakota's ban on gay marriage says he's in disbelief over a U.S. Supreme Court ruling that declares state's must issue marriage licenses to same-sex couples.

Minneapolis attorney Josh Newville says the ruling by the court is a "powerful, powerful opinion."

Newville says he doesn't anticipate any delay for U.S. District Judge Karen Schrier's opinion to go into effect.

Newville, who is gay, says he's overwhelmed. He hasn't talked to his plaintiffs but says he can't describe how happy they must be.

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