Bloomberg reported that prosecutors for Mueller asked U.S. District Judge Amy Berman Jackson to stop Manafort from arguing that the special counsel targeted him for "vindictive reasons."
The news outlet reported that prosecutors also requested Berman block Manafort from providing evidence that shows he was investigated, but not charged, prior to Mueller's appointment last summer.
Mueller's team argued that any suggestion that the special counsel "resurrected" old charges would be misleading because it would indicate the Justice Department had concluded its original investigation.
Manafort has pleaded not guilty to charges of bank fraud and money laundering, among others. His trial is set to begin in September in Northern Virginia.