Are you kidding? Are you communicating to the Internet via carrier pigeon and can't afford to waste bandwidth on 10 seconds of research?
The DNC gave their server to CrowdStrike - a Ukrainian computer security company. It's not exactly a secret, it was in all the papers - even the ones that tell the truth (few as they are). The company itself describes their DNC ties.
Anyone who does computer forensics (like me) knows the disk images are all you need. That's what CrowdStrike still has, and it's a piece of evidence that the FBI has never seen.
https://www.crowdstrike.com/blog/bears-midst-intrusion-democratic-national-committee/