John Roberts

January 27, 1955 — Buffalo, New York, USA

John Glover Roberts Jr. is an American jurist serving since 2005 as the 17th chief justice of the United States. He has been described as having a moderate conservative judicial philosophy, though he is primarily an institutionalist. Regarded as a swing vote in some cases, Roberts has presided over an ideological shift toward conservative jurisprudence on the high court, in which he has authored key opinions.