FBI McCabe knew primary-sub-source was feeding nonsense into Dossier because FBI McCabe set up the network.
Without Dossier, no FISA.
Without FISA, no insurance policy.
Without Dossier and FISA, no Mueller.
[The primary FBI need at the time was financing and operational support.]
This is a key element of the Steele Dossier.
thehill.com/opinion/white-…
scribd.com/document/37110…
Why?
It's highly likely the FBI would be risk adverse to Deripaska's uncontrolled testimony. WATCH:
Deripaska contracted Steele to represent his interests in a U.K. case.
...This doesn't mean Oleg agreed to be a source for Christopher Steele. The key implication is that Steele used conversations with Deripaska as his source material.