The third-highest official in the Department of Justice, and the presidential appointee who presents arguments in front of the Supreme Court justices when the government is a party to a case, is called the .

Associate Attorney General

Explanation:

The Associate Attorney General is the third-highest ranking position in the U.S. Department of Justice. This position is appointed by the President, and confirmed by the Senate.

The Assocaite Attorney General has acts as an assistant and advisor to both the Attorney General, and the Deputy Attorney General, and oversees several divisions within the DOJ.

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