Richard Rush was an American lawyer, politician and diplomat who served as the 8th United States Attorney General from 1814 to 1817 and the 8th United States Secretary of the Treasury from 1825 to 1829. He served as John Quincy Adams's running mate on the National Republican ticket during the 1828 United States presidential election.

The United States attorney general (AG) is the head of the United States Department of Justice, and is the chief law enforcement officer of the federal government of the United States. The attorney general serves as the principal advisor to the president of the United States on all legal matters. The attorney general is a statutory member of the Cabinet of the United States.