The United States Supreme Court on Monday declined to hear a case involving the National Organization for Marriage (NOM), gay weekly The Washington Blade reported.

The group was formed in response to the California Supreme Court decision legalizing gay marriage in the state, and pushed for a constitutional amendment overturning the court's ruling. NOM is fighting against marriage equality in about a dozen states throughout the nation.

Earlier in the month, the U.S. First Circuit Court of Appeals upheld the constitutionality of Maine's disclosure laws. NOM appealed the decision to the Supreme Court.

NOM, which spent more than $1.9 million to repeal the state's gay marriage law, claimed that Maine's rules were overly burdensome and unconstitutional. The state requires groups that raise or spend more than $5,000 to influence elections to register with the state and disclose donors who make contributions in excess of $100.

The Supreme Court announced its decision without comment.

Fred Karger's Californians Against Hate had asked the Maine Commission on Government Ethics and Election Practices to investigate the group. Karger, now a Republican candidate for the White House, accused NOM of not following the law's reporting requirements.

“They finally will be forced to reveal their donor names,” Karger told The Washington Blade. “That is one of my goals in life, to keep them transparent, which is a very tough assignment because that is the opposite approach they take.”