Per the documents, Manafort attempted to contact witnesses via telephone and an encrypted messaging program.

Mueller's team has asked the court to revoke or revise Manafort's release conditions, including his bond and house arrest, in the wake of the filing. This coterie allegedly was dubbed the "Hapsburg" group by Manafort. Former campaign manager Corey Lewandowski, after his firing in June, said that Manafort "has been in operational control of the campaign since April 7". I think, however, they were doing a number on Trump himself.

While never naming the people who were allegedly contacted by Manafort, prosecutors say Manafort "repeatedly contacted" two people who worked for him and previously assisted in his lobbying and public relations efforts for Ukrainian politicians.

In one call, the agent wrote, Manafort said he wanted to give the person a "heads-up about Hapsburg".

Manafort and his associate Rick Gates were indicted in February for tax and bank fraud crimes and laundering payments from overseas.

North Korea replaces top three military officials
Kim is said to have spent the night at the North's Embassy in Beijing and will fly back to North Korea on Monday. The historic meeting between Mr Trump and Kim would be the first between sitting U.S. and North Korean leaders.

"I tried [Person D1] on all numbers", Person A said, according to the documents.

Manafort has pleaded not guilty on all of the charges against him.

Domin said that one of the public relations firm executives, identified as Person D1, told the government he "understood Manafort's outreach to be an effort to 'suborn perjury, '" and cause someone knowingly to tell a falsehood in the case by saying the group worked mainly in Europe and to minimize its US work.

The special counsel says Manafort's actions violate federal law, and therefore violate the terms of his pretrial release.

Manafort faces several felony charges in two federal cases.