Special counsel Robert Mueller’s D.C. grand jury on Friday issued a new superseding indictment against former Trump campaign manager Paul Manafort, incorporating new charges that Manafort obstructed justice by attempting to persuade potential witnesses in his trial not to testify against him. The new indictment also includes Mueller’s first charges against Konstantin Kilimnik, a longtime Manafort aide with ties to Russian intelligence who has appeared pseudonymously in previous indictments against Manafort.

Between February and April of this year, the new indictment charges, the defendants “knowingly and intentionally attempted to corruptly persuade another person… with intent to influence, delay, and prevent the testimony of any person in an official proceeding.”