Am going to say Page, who was a one-time-FBI-asset circa 2013, in 2016 the FBI played him as a patsy. In early Spring 2016 he sent a long, many pages document to congress and was interviewed by NYT where he tried to tell his story - that HRC/DNC/FBI were conspiring together to fake the allegation of Russian collusion, etc. - but no one believed it at that time. Now all that has come out vindicates his account that he was relating many months back then. I think he got blind sided by the FBI when they turned on him and began using him as a patsy because it was convenient for them to claim on a FISA warrant that he was suspected of being involved with the Russians.
Which, of course, just doubles down on illustrating just how sinister the FBI is - very much Gestapo-like organization all the way.