The U.S. Supreme Court on Tuesday denied a request from a lawyer who once represented a woman known as the “DC Madam” to release records from her famous escort service.

Those records include such sensitive information as customer names, Social Security numbers and addresses— information the lawyer, Montgomery Blair Sibley, has said could affect the 2016 presidential election. The so-called DC Madam Deborah Jeane Palfrey ran a high-priced escort service in the Washington D.C.-area for a number of years before her eventual conviction. She died in 2008.