"It bears emphasizing at this stage that Manafort is presumed to be innocent of these charges, and it will be the prosecution’s burden to prove him guilty beyond a reasonable doubt," Judge Jackson added. "But the indictment will not be dismissed, and the matter will proceed to trial."
The decision comes about two weeks after another federal judge - T. S. Ellis, III - raised questions in a court hearing about the scope and breadth of the Mueller probe, giving hope to critics who believe that the investigation has overstepped its bounds.
Ellis is handling a case against Manafort in Virginia; Jackson in the District of Columbia.
The charges filed in Washington, D.C. relate to money laundering, and failure by Manafort to register as a foreign agent for the government of Ukraine.
The case originally involved both Manafort, and his top campaign deputy Rick Gates - but Gates is now cooperating with federal investigators.
This effort by Manafort was to dismiss the revised indictment filed by the Special Counsel filed along with Gates' guilty plea.