WASHINGTON — The special counsel, Robert S. Mueller III, brought new obstruction charges on Friday against President Trump’s former campaign chairman, Paul Manafort, and added allegations against a close associate, who prosecutors suspect has ties to Russian intelligence.
Prosecutors said the obstruction charge relates to Mr. Manafort’s efforts to coach the stories of witnesses against him. He remains charged with money laundering, illegal foreign lobbying and lying to federal officials.
Mr. Manafort’s longtime associate, Konstantin V. Kilimnik, was added to the case, and was charged with obstruction of justice and conspiracy to obstruct justice. The charges are related to an effort by him, Mr. Manafort and other associates to have prominent European politicians vouch publicly for Viktor F. Yanukovych, the pro-Russia former president of Ukraine, who was Mr. Manafort’s client.
Prosecutors allege that Mr. Kilimnik and Mr. Manafort tried to convince two associates who worked on the campaign involving the Europeans, whom they referred to as the “Hapsburg group,” to lie about its scope.