The American Center for Law and Justice says a years-long challenge to prevent the Ten Commandments from being posted in an Ohio court doesn't have the legal standing to continue.
The American Civil Liberties Union filed a lawsuit in 2001 after Judge James DeWeese displayed a "Philosophies of Law in Conflict" poster in his courtroom.
The self-designed poster shows two columns, one labeled "moral absolutes" that lists the Ten Commandments, and another labeled "humanist precepts" with seven concepts listed underneath.
A judge ordered that the display be removed in 2002, which then led to a series of appeals. Now, the case has reached the U.S. Supreme Court.
ACLJ attorneys filed a petition to the court earlier this year, urging the justices to hear the case. Tuesday, the conservative group also filed a reply brief arguing that the ACLU had no legal standing to challenge the courtroom display.
"[Supreme Court precedent] shows the mere observation of an unwelcome governmental display of religion does not give one legal standing to challenge the display in federal court," ACLJ Senior Counsel Jay Sekulow said.
"We also argue that the federal appeals court was wrong in holding that the display was unconstitutional," he added.
"The poster falls in line with those decisions of the Supreme Court recognizing 'the strong role played by religion and religious traditions throughout our Nation's history,'" he said.
The High Court is expected to make a decision on whether to hear the case when justices reconvene in the fall.