Sen. Lindsey Graham sent a letter to Attorney General William Barr urging him to declassify a slew of documents related to the FISA abuse probe.

Graham listed nine separate categories of documents he said should be made public.

The documents would shed light on how the FBI assessed the infamous Steele dossier, which the FBI used to obtain surveillance warrants against Carter Page.

Senate Judiciary Committee Chairman Lindsey Graham is calling on Attorney General William Barr to declassify and publicize nine categories of information from the inspector general’s FISA abuse investigation.

The documents, if released, would shed light on the FBI’s assessment of the Steele dossier, as well as information related to confidential human sources that the FBI used to gather intelligence from the Trump campaign.

“In order for the Inspector General to be able to present the most complete results of his investigation to Congress and the American people, certain documents will need to be declassified and released to the public,” Graham wrote to Barr in a letter released Tuesday.

“I write to urge you to declassify all documents the Inspector General identifies as appropriate for declassification as much as possible, without harming national security.”

Michael Horowitz, the Justice Department inspector general, is believed to be close to releasing a report of his office’s investigation into whether the FBI and Justice Department abused the Foreign Intelligence Surveillance Act (FISA) process regarding Carter Page, a former Trump campaign adviser.

The FBI and DOJ relied heavily on the dossier in applications for four FISA warrants against Page. Christopher Steele, a former British spy, compiled the dossier on behalf of the DNC and Clinton campaign.

The FBI cited the dossier in the FISA applications even though many of Steele’s claims were unverified. Other allegations that Steele made have been undercut by the special counsel’s probe. The special counsel determined there was no evidence that the Trump campaign conspired with Russia to influence the 2016 election. Steele alleged Trump associates, including Page, were part of a “well-developed conspiracy of co-operation” with the Kremlin.

Graham described the nine categories of information in his letter to Barr:

All documents and communications originally shared with the Gang of Eight in May 2018 related to the investigation into Russian interference in the 2016 election, including any transcripts or summaries of transcripts of conversations between George Papadopoulos and confidential informants. The applications for FISA warrants, and any renewals thereof, for Carter Page or anyone else associated with the Trump campaign. The letter from the Department to the FISC filed pursuant to Rule 13(a) of the FISC’s Rules of Procedure. Any opinions from the FISC related to the Carter Page FISA or other Trump campaign related FISAs. The chart that shows the FBI’s attempts to verify the allegations in the Steele dossier. Any FBI or Department documents or communications discussing Christopher Steele’s credibility and/or biases or the FBI or the Department’s knowledge of Steele’s contacts with members of the media. FD-302s or other interview summaries related to anyone at FBI or the Department who interacted or accepted documents or communications from Christopher Steele, Glenn Simpson, Fusion GPS, Michael Sussman, Perkins Coie, or the Democratic National Committee (DNC) or anyone associated with the DNC. The FBI’s confidential human source reports and related documents and communications for Christopher Steele. Documents and communications related to the defensive briefings given to both the Clinton and Trump campaigns.

Republicans have long alluded to FBI transcripts of conversations between at least one confidential informant and George Papadopoulos, a former Trump campaign aide. Republicans familiar with the transcripts have said they exculpatory information for Papadopoulos, who had contact with Stefan Halper, a former Cambridge professor and longtime FBI informant. (RELATED: A London Meeting Before The Election Aroused George Papadopoulos’s Suspicions)

Graham’s list also refers to a chart the FBI is believed to have used to track allegations made in Steele’s dossier. The document would likely show how the FBI investigated the claims made in the dossier, and how it assessed the report.

Republicans have also accused the FBI of failing to disclose to the FISA Court that Steele openly opposed Trump’s candidacy. Bruce Ohr, a Justice Department official who had close contact with Steele, told the FBI the former spy said he was “desperate” to see Trump lose the election. Steele also had repeated contacts with the media as part of an effort to disseminate damning allegations against the Trump campaign prior to the election.

The FBI released a few heavily redacted documents related to Steele. The documents showed investigators had only “medium” confidence Steele’s dossier was accurate. They also showed that while Steele was considered a reliable source of information, the FBI cut ties with him Nov. 1, 2016, because he had unauthorized contacts with the media. Despite that, the FBI continued citing Steele’s work in the FISA applications against Carter Page.

Graham also seeks information related to any FISAs granted against any additional Trump associates. So far, the FBI has only confirmed the existence of FISAs against Page.

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