 In December 2017, Senator Tom Carper (D-DE) wrote a letter to the EPA Inspector General, requesting that the IG expand the scope of the pending audit concerning Pruitt's travel to include the Morocco trip.In response to Carper's letter, "the IG said he would expand the scope of the investigation of Pruitt's travel costs through the end of 2017 and would look at whether EPA followed all policies and procedures.