The judge who oversees former national security adviser Michael Flynn has withdrawn from the case.
The United States District Court for the District of Columbia said that Judge Rudolph Contreras recused himself, but did not disclose why he had done so, CBS News reported.
The case has been reassigned to Judge Emmet Sullivan, who was appointed by former President Bill Clinton. Flynn's sentence will occur in February.
Flynn pleaded guilty in federal court last week to lying to the FBI in January about his contacts with former Russian ambassador Sergey Kislyak. Flynn was charged with "knowingly and knowingly answering" the "FBI" about "false, fictitious and fraudulent communications" about communications exchanged with Kislyak shortly after Trump took office.
Flynn said he is cooperating with special lawyer Robert Mueller, who is investigating Russian meddling in the 2016 election.
Flynn was removed from his White House post earlier this year after it was revealed who had tricked the administration about their communications related to sanctions with the Russians.