The Hillary dossier was used to get a FISA warrant against Carter Page, along with three extensions. But, not all of the dirty cops agreed that the dossier could be used in a FISA court.
Peter Strzok was fighting to use it but Stu Evans, the official in charge of applying for FISA warrants did not think they should. It was finally decided when Evans’ boss intervened and told him to make it happen.
As we know now, Evans was right and the dossier was a bogus document and it wasn’t worth the paper it was written on.
The FBI was well aware that the dossier was dodgy at best with British Intelligence, Bruce Ohr and State Department official Kathleen Kavalec all warning that the dossier was extremely unreliable.
In April 2018 Real Clear Politics reported that they had received a 2nd copy of the Steele dossier that came from individuals related to the Clintons.
In late September 2016, Sidney Blumenthal, a close Clinton confidant and colleague of Shearer’s, passed Shearer’s dossier on to State Department official Jonathan M. Winer, a longtime aide to John Kerry on Capitol Hill and at Foggy Bottom.
According to Winer’s account in a Feb. 8, 2018 Washington Post op-ed, he shared the contents of the Shearer dossier with the author of the first dossier, ex-British spy Christopher Steele, who submitted part of it to the FBI to further substantiate his own investigation into the Trump campaign.
Stu Evans was in charge of handling FISA applications for the Justice Department [source]. Apparently, Evans was so concerned about the Carter Page FISA warrant issue that Evans’ boss had to intervene and put the squeeze on Evans to go forward with this:
Lisa Page: “I communicated you [Strzok] and boss’s [McCabe] green light to Stu earlier, and just sent an email to Stu asking where things stood. This might take a high-level push,” she wrote [source].