The U.S Supreme Court. [Photo, AP]

The Supreme Court on Thursday rejected former President Donald Trump's plea to step into the legal fight over the FBI search of his Florida estate.

The justices did not otherwise comment in turning away Trump's emergency appeal.

Trump had pressed the court on an issue relating to classified documents seized in the search authorized by a federal judge of Mar-a-Lago.

The Trump team was asking the justices to overturn a lower court ruling and permit an independent arbiter, or special master, to review the roughly 100 documents with classified markings that were taken in the Aug. 8 search of Mar-a-Lago.

The move Thursday appears to greatly reduce the potential impact of the special master process to the ongoing Justice Department criminal investigation into the classifed documents.

A federal appeals court had already restored the department's access to the classified documents, which had been investigators' primary goal. And the Supreme Court's decision to stay out of the fray ensures that the special master will not have access to those same records as the FBI and Justice Department evaluate if criminal charges are merited.

A three-judge panel from the Atlanta-based U.S. Court of Appeals for the 11th Circuit last month limited the special master's review to the much larger tranche of non-classified documents. The judges, including two Trump appointees, sided with the Justice Department, which had argued there was no legal basis for the special master to conduct his own review of the classified records.