I can’t get past the filter on the link without turning off Ad-blocker. Does it say what exactly was the double-cross?
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Without reading further.. I would guess what was may have been meant by "double cross" was Comey going to see Trump with the two page summary of the Dossier" that was completely disingenuous and misleading. He went to see Trump (acting like he was trying to be helpful) just to get D.T. to respond in some way that would get him in trouble.
Maybe someone else on this thread has a better explanation for you.
I haven't read the thread yet this morning.
At the moment Mr. Comey called the scintillating dossier unverified, the FBI was using it to justify a wiretap on former Trump campaign volunteer Carter Page.
The briefing instantly leaked to CNN, rocking the transition team with a series of unverified dossier accusations. BuzzFeed then posted the 35-page dossier, which remains unconfirmed publicly.
There is a question as to whether the FBI included the dossier in the briefing, and possibly leaked that it had done so, in order to provide the media a pretext to report on the dossier, Mr. Grassley and Mr. Graham wrote.
Does that help?