Court Filing Suggests Informant Was Inside Manafort's Firm

A one-page memo filed in court suggests that federal investigators had an informant inside Paul Manafort's consulting firm.
Manafort served as President Donald Trump's campaign chairman for a short time, and has become involved in Special Counsel Robert Mueller's investigation into Russian ties with the campaign.
The memo, filed by Manafort's attorneys, indicates that someone at the firm allowed a journalist to review digital records, including financial records.