Former Trump adviser Roger Stone arrives for his arraignment at Federal Court in Washington on Jan. 29. Photo: Diego M. Radzinschi/NLJ

A federal prosecutor argued in court Tuesday that Roger Stone is not entitled to see redacted portions of special counsel Robert Mueller III's report, because they've already provided the longtime Trump ally the underlying documents related to his criminal case.

Assistant U.S. Attorney Jonathan Kravis said the government will outline its argument in a response brief due Friday, but he told U.S. District Judge Amy Berman Jackson in Washington that the redacted portions of Mueller's report Stone is seeking are “not discoverable,” noting they mostly relate to “mental impressions and conclusions” of government attorneys.

The exchange came during a brief status hearing Tuesday morning, after Stone asked the court earlier this month for a copy of the report because “it contains the government's evidence and conclusions on matters essential to Stone's defense.” Bruce Rogow, Stone's lawyer, said Tuesday they were still seeking the unredacted report even after a redacted version was released.

Jackson said she will rule on the motion after reading both sides' briefs. She told Stone's legal team she specifically wants them to “hone” in on why they believed they are entitled to redacted parts of the report if they were already being provided the raw, underlying material, including grand jury testimony of witnesses, for possible cross examination.

Kravis told the judge the government has already begun providing Stone with any material that could bear on the credibility of potential trial witnesses, or potentially exculpate Stone. He said he expected that process to be “substantially completed” in the next four to six weeks.

Stone has pleaded not guilty to charges he lied to congressional committees probing Russian interference in the 2016 U.S. election. His trial is expected to start in early November.