Sen. Lindsey Graham Lindsey Olin GrahamLincoln Project mocks Lindsey Graham's fundraising lag with Sarah McLachlan-themed video The Hill's Morning Report - Sponsored by Facebook - Republicans lawmakers rebuke Trump on election Trump dumbfounds GOP with latest unforced error MORE (R-S.C.) last week wrote to Attorney General William Barr Bill BarrFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Why a backdoor to encrypted data is detrimental to cybersecurity and data integrity FBI official who worked with Mueller raised doubts about Russia investigation MORE asking him to declassify documents relating to the Justice Department inspector general's investigation into the handling of the Russia probe.

Inspector General Michael Horowitz has been looking into the conduct of the FBI and Justice Department in the Foreign Intelligence Surveillance Act (FISA) warrant process, although, according to Graham's letter, the review is "nearing completion."

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"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.

He specifically asked for the declassification of nine documents, including the FISA warrants for former Trump campaign adviser Carter Page and other members of the Trump campaign. He also requested that documents relating to former British spy Christopher Steele and his dossier be released.

This is the first of what I expect will be several more ugly and damning rebukes of senior DOJ and FBI officials regarding their actions and biases toward the Trump campaign of 2016. — Lindsey Graham (@LindseyGrahamSC) August 29, 2019

The Justice Department declined to comment.