McCain sent an aide to the UK to pick up the first hard copy of the bogus Dirty Dossier. McCain hand-delivered it to Comey. Then Comey requested the private meeting with Trump to discuss the Dirty Dossier on Jan 6th.
The fact of the meeting and the existence of the DD was then leaked by Comey to the NYT, putting the entire Deep State Coup Trap into motion.
And BTW, this is why Trump thought one-on-one meetings with the FBI director were SOP: the first was at Comey's request. The Trump-Comey meeting that discussed Flynn was leaked and became the pretext for Comey's firing and the appointment of Mueller.
Thanks for the analysis. That makes sense for the sequence of events after McCain got involved. Prior to that, I think this was conceived as an October Surprise; after Trump won to everyone’s surprise, it was then repurposed by Hillary’s campaign in the discussions they had immediately post-election—I need to dig up the source again (think it’s a new book on the election that was just published, IIRC) but they had a conference immediately after Hillary lost and discussed blaming the loss on Russia at that time.
Comey knows he can go to prison if this is all laid bare. He needs to take out Trump to protect himself.
This is how the uber-corrupt do it. They don't take bribes in suitcases or offshore accounts. They are given multi-million dollar gigs at cooperating and colluding corporations (Lockheed, HSBC in this case) in between gigs as US Atty etc.
I’ve always remembered that the FBI already knew the contents of the FGPS dossier and Wiley Juan was a Johnny-come-lately to “leaking” the contents through collusion with the DeepState.