Washington (CNN) Justice Department prosecutors don't want to allow longtime Donald Trump ally Roger Stone to review unredacted portions of special counsel Robert Mueller's report before his trial.

The question came up Tuesday at a procedural court hearing about what materials Stone is entitled to review as his lawyers prepare for his November trial. Stone pleaded not guilty earlier this year to lying to a congressional committee that was investigating Russian election meddling.

"To the extent that there is redacted material in the special counsel's report that relates to this case, it is not subject to discovery by the defendant," prosecutor Jonathan Kravis said.

Stone's lawyers want to review sections of the report about Stone, as well as additional internal documents from the special counsel's office, like memos from FBI agents that interviewed witnesses who might be called to testify against Stone.

Judge Amy Berman Jackson, who is overseeing the case, said she might privately examine the portions of the report about Stone, so she can determine if Stone needs the information for his defense. Prosecutors said they were "certainly willing" to make that happen.

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