Paul Manafort, the former Trump campaign official who has been indicted for money laundering and making false statements, filed a lawsuit [complaint, PDF] Wednesday against the US Department of Justice (DOJ), Deputy Attorney General Rod Rosenstein and Special Counsel Robert Mueller [official websites].

The suit, filed under the Administrative Procedure Act [5 USC §§ 701 et seq.], challenges the DOJ’s order appointing Mueller as special counsel as well as the scope of Mueller’s investigations.

According to the complaint, the order appointing Mueller was overly broad, exceeding the DOJ’s legal authority, and Mueller’s investigation has gone beyond its original mandate: “The actions of DOJ and Mr. Rosenstein in issuing the Appointment Order, and Mr. Mueller’s actions pursuant to the authority the Order granted him, were arbitrary, capricious, and not in accordance with the law.”

Manafort is urging that all actions taken by Mueller “must be set aside.”

Manafort was indicted [JURIST report] in October along with his longtime business partner Rick Gates and former Trump foreign policy advisor George Papadopoulos. Manafort and Gates have pleaded not guilty, and Papadopoulos pleaded guilty to making a false statement to FBI investigators in connection to these charges.