Sessions is recused from these investigations. Any US attorney "outside" DC would still answer up the chain to acting AG on these matter, a FISC abuser, Rod Rosenstein.
He recused himself from being involved in the Russian meddling investigation. He didn’t recuse himself from investigating the illegal actions of the Obama FBI/Justice Department.
And since Sessions has recused himself from the Justice Dept., it would be Rosenstein who picked the attorney...I'm predicting this attorney won't find anything...
It's been said by some that if a special prosecutor was chosen, Grand Jury indictments would surely be forthcoming and quickly...
Supposedly this outside of DC attorney Sessions talks about has been on the job for some time...Must be a slow mover...