Then he should fire Rod Rosenstein, the idiot who appointed Mueller, and probably Jeff Sessions for recusing himself into a lame duck Attorney General.
Above all else, he needs to go after their law licenses for misusing judicial process. The media needs be taken to task also for spreading gossip, innuendo, and false allegations. Put the principal perpetrators before grand juries and demand they provide their "sources". When they do not, jail them for contempt.