United States attorneys are officials of the U.S. Department of Justice who serve as the chief federal law enforcement officers in each of the 94 U.S. federal judicial districts. Each U.S. attorney serves as the United States' chief federal criminal prosecutor in their judicial district and represents the U.S. federal government in civil litigation in federal and state court within their geographic jurisdiction. U.S. attorneys must be nominated by the President and confirmed by the Senate, after which they serve four-year terms.