A U.S. District Court judge on Thursday denied a request from President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE's former campaign chairman Paul Manafort Paul John ManafortOur Constitution is under attack by Attorney General William Barr Bannon trial date set in alleged border wall scam Conspicuous by their absence from the Republican Convention MORE to suppress evidence taken from a storage unit by special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's investigators.

Manafort said the evidence was taken without his permission, and that an FBI agent got one of his employees to give access to the storage unit.

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District Court Judge Amy Jackson responded, “Law enforcement agents do not need a warrant to enter a location if they have voluntary consent," according to Reuters.

Manafort's lawyers told Jackson in a hearing last month that the search of the storage locker and a raid on his Virginia home were unreasonable and violated their client's constitutional rights.

Manafort has pleaded not guilty to various charges in Mueller's federal probe, including money laundering, tax fraud and bank fraud conspiracy.

Jackson directed Manafort, who was previously under house arrest, to be jailed in Virginia last week after she agreed to Mueller's request to revoke his bail.

Mueller filed a superseding indictment against Manafort, claiming Manafort attempted to tamper with witnesses in the case.

The two witnesses originally reported Manafort's alleged attempt to influence them to the special counsel earlier this month.

Prosecutors have raised concerns about Manafort's behavior under house arrest in the past.

They alleged in December that Manafort had violated a gag order by helping to author an op-ed in a Ukrainian newspaper defending his work in the country.

Manafort's trial is set for September.