I want to say it's because if he stepped in, they'd screech about "DRUMPF OVERSTEPPING POWER AGIAN! IMPEACHHHEEEEE!!!!" , but if he just stands back, they'll rope themselves through incompetence, just like Jussie.How in the fuck is Donald J Trump letting Obama staffers tell the FBI what to do??
Whoever they assign to the case, fire that person. Then fire the person who assigned that person, and fire everyone in that person's rolladex.