Andrew Weissmann, the architect of the case against former Trump campaign chairman Paul Manafort, will leave Mueller's team to study and teach at New York University and work on a variety of public service projects, including his long-standing interest in preventing wrongful convictions, the media reported, citing two anonymous sources.
NBC News confirmed the NPR report, citing an unnamed source close to Weissmann.
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US media interpreted Weissmann’s departure as the latest in a series of clues that Mueller has all but wrapped up his investigation of purported links between the Trump campaign and Russia.
Weissmann was the lead prosecutor in the case against Manafort, who faces seven-and-a-half years in prison for crimes such as conspiracy, money laundering and tax evasion that have no connection to allegations of Russian election interference.