A federal judge on Monday warned former Trump 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 that he shouldn’t discuss his case in the press after documents showed Manafort was involved in drafting an op-ed defending his work in Ukraine.

U.S. District Judge Amy Berman Jackson told Manafort that his editing of the op-ed, which appeared in an English-language publication in Ukraine, will not be tolerated, and that any similar actions in the future would be considered a violation of his gag order, The Associated Press reported.

Court documents show that Manafort heavily edited an essay that was published last week in an English-language Ukrainian newspaper under the name of a former spokesman for the Ukrainian Ministry of Foreign Affairs.

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Prosecutors argued that the op-ed violated a gag order against Manafort, though Manafort’s attorneys disputed that claim, saying the essay was not meant for a U.S. audience.

A note on the Kyiv Post article says that author Oleg Voloshin wrote the article by himself, and it was given to one of Manafort's Ukrainian contacts for "fact-checking." The author has denied any involvement by Manafort.

Manafort was indicted and pleaded not guilty to charges of money laundering and tax fraud in special counsel Robert Mueller's probe into possible collusion between the Trump campaign and Russia.

Manafort was placed under house arrest, but recently reached an $11 million bail deal with federal prosecutors.