The justices have no comment on their action, in response to Ryan's claim that he and his fellow defendant, businessman Larry Warner did not receive a fair trial.

Their lawyers argued that the trial judge replaced two jurors with alternates after deliberations in the case had already begun.

Ryan, 74, is serving a 6 1/2 year sentence in federal prison.

The Chicago-based 7th U.S. Circuit Court of Appeals earlier upheld the convictions.