Mr Barr has reportedly overruled the objections of career lawyers in the department who say that they need more time to build a case against the tech giant, The New York Times reports.
Department officials have told lawyers involved in the antitrust inquiry into Googles parent company Alphabet to finish their work this month.
Most of the legal team opposed such a pressing deadline arguing in a lengthy memo that they would be unable to prepare a strong case in such a short period of time.
There is disagreement within the team as to how broad an antitrust case should be, and how Google could act to resolve issues turned up by the case.
Career lawyers fear the September deadline is designed to show action against the tech giant ahead of the 2020 election in November.
A senior DoJ official counters that Mr Barr feels the department has been moving too slowly and the deadline is reasonable, The New York Times reports.
Alphabet is an obvious target for an antitrust case given the broad suite of companies and products that consumers use either actively or passively multiple times a day.
To date, Europe has led the way in reining in the tech giants in terms of antitrust issues, while the US has lagged behind.
Original article