This is confused. The fact that they worked for House Democrats including DWS does not imply they had anything to do with leaking emails from the Democratic National Committee servers to Wikileaks. Totally separate organizations and computer systems. Of course it is possible that doing work for DWS in Congress they also gained passwords and access to DNC systems, but nothing in public today has indicated that. Also, they do not seem to be likely candidates for sharing their materials with Wikileaks.
They may well have committed espionage, and they should get their asses kicked, but I seriously doubt they are the source of Wikileaks publications of DNC emails.
I saw somewhere that one of them had done some work for Debbie Wasserman Schultz. Draw your own conclusions.