Chief Justice John Roberts is the head of the Supreme Court of the United States, having been appointed by President George W. Bush in 2005. He is known for his conservative judicial philosophy and often plays a crucial role in deciding important cases that shape American law. Roberts was born on January 27, 1955, in Buffalo, New York. He graduated from Harvard College and earned his law degree from Harvard Law School. Before becoming Chief Justice, he served as a judge on the U.S. Court of Appeals for the D.C. Circuit and worked in private practice and government.