Most of the story was known in early 2017, and appeared in Levin's broadcasts, Joseph diGenova's book, Greg Jarret's book, etc.
Assuming tthat a dem wins in Nov 2020, and these investigations still linger, it will be for naught.
Sen GOP Howard Baker once asked "what did the President know, and when did he know it?"
That was the equivalent of the Diane Feiinstein, today.