Page is the strange one. I wonder if the Intelligence bureaucracy owns him on some level. He’s always been the wild card - a double agent flipped? He acts dumb... but it feels like an act. Time will tell.
I’ve read that he was an informant at some time.
There are heavy redactions on things relating to him in the FISA warrants. But remember, He was the target that justified the whole thing.
Carter Page, a previous FBI informant, was introduced into the campaign via Stefan Halper, a Republican consultant going back to Nixon. Halper is also an FBI/CIA operative. Those are established facts.