At Friday’s hearing, Judge Amy Berman Jackson said she could not go through with the sentencing until the dispute over whether and how much Manafort lied to the special counsel is resolved.
Because of the sensitive nature of the investigation, the two sides will argue the case in a closed-door hearing on Feb. 4, Jackson ruled Friday, with a redacted transcript to be released as soon as possible.
Manafort will first be sentenced in his case out of the Eastern District of Virginia on Feb. 8.
Manafort was convicted of tax evasion and bank fraud in August after a weeks-long trial in Virginia federal court, and a month later agreed to cooperate with Mueller's investigation by pleading guilty to two counts from his D.C. case and admitting his guilt to the remaining counts in his Virginia case.
The Mueller team has said Manafort has lied about a $125,000 payment he received in 2017, his conversations with a former associate who's been accused of being a Russian intelligence operative, contacts with administration officials, and an unspecified ongoing investigation.
In poorly redacted court papers, Manafort’s lawyers accidentally revealed that he shared campaign polling data with his associate, Konstantin Kilimnik — who law enforcement say was connected to Russian intelligence — and then lied about it to federal investigators.
On Wednesday, Manafort’s lawyers said he would not attend the hearing, but the judge ruled later that day that he was required to appear. The judge did grant Manafort's request to wear a suit to the courtroom, rather than his prison uniform.
Manafort appeared in a suit, looking visibly more grey than his last appearance and walking with the help of a cane. It was revealed in court documents that he is suffering from gout. He had appeared at a October hearing in a wheelchair.
Judge Jackson will also oversee the criminal case of Roger Stone, who was indicted Thursday and arrested hours before Manafort's hearing on Friday.