Chief Justice John Roberts spoke about the history, meaning, and provisions of the U.S. Constitution, as well as the operation of government within the parameters set forth in the U.S. Constitution. Video footage highlighted the operation of the legislative, executive and judicial branches of government by providing footage of several recent events and activities such as presidential inaugurals, impeachment proceedings, legislative events, and Supreme Court oral arguments. Chief Justice Roberts also talked about ways in which the Constitution had been interpreted and its function as a working document.