Mueller knows IG Horowitz report & Huber indictments are coming soon.
He has to show his hand soon before the shit hits.
^THIS
The house of cards is about to collapse on the Russian collusion narrative. It was a setup and many DOJ, FBI and White House in Obama administration are about to be indicted. Mueller wont be able to carry that collusion conspiracy around any more
Mueller probably is in the IG report - probably for obstruction of justice.