Roger Stone’s criminal case has barely been before U.S. District Judge Amy Berman Jackson in Washington for more than a week, and his defense lawyers are already trying to get a new judge.

Stone’s legal team on Friday questioned the fairness of assigning the case to Jackson as a related case instead of randomly assigning it under local criminal rules. Random assignments are an essential element of due process to ensure a fair trial, Stone’s lawyers said in their request for a new judge.