Goldstein, Andrew: - Andrew Goldstein was one of Mueller's lead prosecutors investigating obstruction of justice and Russian interference. Prior to working in the special counsel's office, Goldstein served as chief of the public corruption unit at the US attorney's office for the Southern District of New York, where he prosecuted numerous high-profile cases. Goldstein is a former staff writer at Time, and currently chairs the white-collar defense and investigations practice at Cooley LLP.