Manafort, who was caught up in special counsel Robert Mueller's Russian Federation investigation, was arraigned in Virginia, where he was indicted on bank fraud and other charges in February - four months after he was indicted in Washington on conspiracy and money-laundering charges.
Manafort is facing two federal trials because he declined an offer from prosecutors to consolidate the charges in one court.
The trial was set to begin on July 10.
He appeared in the federal court in Washington on February 28 to plead not guilty to 17 grand jury charges of conspiracy against the United States, conspiracy to launder money, lying to federal agents and failing to register as a foreign agent.
The charges - 18 counts in total - stem from special counsel Robert Mueller's investigation into Russia's alleged interference in the 2017 presidential election.
During his arraignment last month, Judge Amy Berman Jackson cautioned that there could be "overlap" in both cases against Manafort as they head to trial.
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A judge in Washington had previously set a trial date for September 17 on an earlier set of charges from special counsel Robert Mueller.
The other former Trump associates who have pleaded guilty and agreed to cooperate with prosecutors are Trump's former national security adviser Mike Flynn and ex-campaign adviser George Papadopoulos. They say he used funds from secret offshore accounts to enjoy a life of luxury.
The charges are not directly related to election interference but revolve around Manafort and Gates's lucrative lobbying on behalf of pro-Russian political figures in the Ukraine. For legal reasons, he has two cases in two courts.
Mr. Mueller alleges Mr. Manafort shielded from the IRS millions of dollars he earned as a consultant and lobbyist for the Ukrainian government. He faces up to 15 years on the charges of filing false tax returns and up to 20 years on the charges of failing to report foreign bank accounts.
He was pictured holding a sign that read "Blood Money" outside the federal courthouse in which former Trump advisor Rick Gates pleaded guilty to federal conspiracy and false statements charges.
The Justice Department responded with a 35-page brief last week, saying Manafort could not use a civil lawsuit to attack ongoing criminal proceedings.