text: As USAG for the Southern District, he investigated Bill Clinton's parton of Marc Rich in light of Rich's donations to the Clinton Presidential Library.  
full_question: As USAG for the Southern District, he investigated Bill Clinton's parton of Marc Rich in light of Rich's donations to the Clinton Presidential Library.  He was acting attorney general in March 2004 when John Ashcroft was hospitalized and resisted expanding domestic wiretapping.  His college thesis compared Reinhold Niebuhr and Jerry Falwell and led to the discovery of this Twitter account.  A letter written about him on May 9, 2018 details two press conferences he gave in 2017: July 5 and October 28, where he, in the words of Rod Rosenstein, usurped the Attorney General's authority.  For ten points, name this former director of the FBI who was fired by Donald Trump in 2017.
first_sentence: As USAG for the Southern District, he investigated Bill Clinton's parton of Marc Rich in light of Rich's donations to the Clinton Presidential Library.  