Rush threw in an important bone :
“Mueller’s office says it has no evidence in its possession responsive to the request from Manafort’s lawyers for transcripts, notes, or tapes of anything to do with Manafort dealing or talking with Russians. However, throughout the past year, NBC, ABC, CBS, NBC, CNN have all run stories claiming the special counsel has evidence of Manafort being in contact with and discussing things with Russian government officials.
But today or yesterday, the special counsel’s office, “No, we don’t have anything, when they were specifically asked for it by Manafort’s lawyers.” So what it means is that somebody in the special counsel’s office has been lying. Have been lying to the media, have been leaking to the media for the past year that Manafort, that they have evidence that Manafort has been communicating with Russians.
I'm pretty sure it is illegal for the prosecutor to withhold evidence from a defense attorney, but nowadays with the FBI doing whatever it damn well pleases, who knows. Technicalities like withholding evidence. Who cares. The important thing is destroying your political enemies.