Searched D5 on Wikileaks, led me to this.

https://wikileaks.org/podesta-emails//fileid/26562/7365

The opposition book on POTUS. Full email has books on Cruz and others.

https://wikileaks.org/podesta-emails/emailid/26562

May have been posted before but kind of notable a search for D5 pulls up this email. I tried some timestamp / clock numerology on it but couldn’t come up with nothing.