John Glover Roberts Jr. has served as the 17th Chief Justice of the United States since 2005. Described as an institutionalist with a moderate conservative judicial philosophy, he has presided over an ideological shift toward conservative jurisprudence on the high court, authoring key opinions. Born in Buffalo, New York, Roberts studied at Harvard University, graduating with highest distinction, and then attended Harvard Law School, where he was the managing editor of the Harvard Law Review.