Doubt it. Everything else is leaking and I am sure if investigation was underway it would be leaked to say it was politically motivated. DOJ should appoint special counsel to give charges fair consideration, else arrest her now and throw her in jail.
My answer to "There would be leaks" is that 1...we know that Trump is adamantly against it. IF there were leaks it costs a job. 2. IF the press DID print it then it becomes "the story" and it stops the fake stories about Russian collusion and Trump. In other words, the press KNOWS it and won't report it because it would hurt their side. It's WHY Trump is continually tweeting about "Why isn't' anyone curious about Clinton.