The U.S. Justice Department has charged Charles Littlejohn, an IRS contractor, with stealing former President Donald Trump’s tax returns and leaking them to the media.

Littlejohn, 38, of the District of Columbia, stands charged with “one count of unauthorized disclosure of tax returns and return information” and faces “a maximum penalty of five years in prison,” The Justice Department said in a statement.

The Treasury Inspector General for Tax Administration (TIGTA), the IRS’s internal watchdog, has the case under investigation. Fox News reports that Littlejohn is set to plead guilty.