The 169-page government filing submitted late Tuesday urges the 7th U.S. Circuit Court of Appeals to reject the imprisoned former governor's request for a new trial.
Defense lawyers filed the appeal on the Illinois Democrat's behalf in July. It asks the Chicago-based appellate court to toss his convictions or at least reduce his 14-year prison sentence.
With prosecutors' response in, oral arguments on the appeal could be scheduled soon. A ruling on the appeal by the three-judge panel could happen within several months.