A gay couple has filed a federal lawsuit challenging the Wyoming law that defines marriage as existing only between a man and a woman. David Shupe-Roderick and Ryan W. Dupree of Cheyenne say the Laramie County Clerk’s Office has refused to issue them a marriage license. They’re asking U.S. District Judge Alan B. Johnson to stop the state from enforcing any laws that block gays and lesbians from access to civil marriage. Wyoming Attorney General Bruce Salzburg declined comment Tuesday, saying he hadn’t reviewed the lawsuit yet.

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