Maybe DoJ is looking for an angle which they can prosecute in an American federal court instead of the democrat DC district which will have a jury of primarily government workers and democrat affiliates. If McCabe is tried in DC, as a prime never-Trumper, he WILL walk.
If so they wouldn’t be in DC right now. They would drop this case and do a grand jury elsewhere.
See my comment above. That is the only thing that really makes sense to me. THey are trying to get the Grand Jury to NOT indict him.