I don't know if he explained this, but there are two reasons why this might happen:
1. So Hillary can't hire them herself.
2. So they have to recuse themselves completely due to an obvious conflict of interest if Hillary becomes a target of the investigation.
Or 3. Because they know where the bodies are buried and what to subpoena and sequester in order to hide or destroy said info or evidence.
Remember the code: Deny everything, Admit No Thing, and make counter accusations. ( Think the movie Dave, project your misdeeds on the innocent). These people are criminals and deviants who crave $$$, power, and sex/drugs w/insatiable appetites. They will do or deal with anyone because the ends justify the means.
We must trust that moral operators exist in all of our government agencies and they will present themselves as those in the spotlight become distracted by covering up so they can’t see the moral actors. People will not become a ‘deep throat’ without a reasonable expectation of survival. The deep state is ‘all in’, people can have and will die before this is done.
If the street gangs kill for $$, power, sex/drugs, turf, what will these people do for a country? However, those of us that believe know that the price is too high, for what will a man gain if he gains the whole world but loses his eternal soul. Prayers up, wisdom, boldness, protection for the President and our patriot leaders; repentance and salvation for the guilty who will throw themselves on the mercy of the court. They will stand before the Judge of all, the only question is as wheat or tares?