It's possible. True if huge.
>https://en.wikipedia.org/wiki/Lisa_Monaco
From 2001 to 2007, she was an Assistant U.S. Attorney in the United States Attorney's office for the District of Columbia, and was appointed as a member of the Justice Department's Enron Task Force, co-leading the trial team in the prosecution of five former Enron executives from 2004 to 2006.
(Weissmann led the Enron Task Force)
After the end of the Enron trial and the Justice Department's disbandment of the special task force, Monaco worked as a special counselor to FBI Director Robert Mueller. She was later chosen by Mueller to be his Deputy Chief of Staff,[15] and then his Chief of Staff; a position she held until January 2009.