<Tr> <Th> Education </Th> <Td> Harvard University (BA, JD) </Td> </Tr> <Tr> <Th> Signature </Th> <Td> </Td> </Tr> <P> John Glover Roberts Jr. (born January 27, 1955) is an American lawyer who serves as the 17th and current Chief Justice of the United States . He took his seat on September 29, 2005, having been nominated by President George W. Bush after the death of Chief Justice William Rehnquist . He has been described as having a conservative judicial philosophy in his jurisprudence . </P> <P> Roberts was born in Buffalo, New York but grew up in northwest Indiana and was educated in a private school . He then attended Harvard College and Harvard Law School, where he was a managing editor of the Harvard Law Review . After being admitted to the bar, he served as a law clerk for Judge Henry Friendly and then Rehnquist before taking a position in the Attorney General's office during the Reagan Administration . He went on to serve the Reagan administration and the George H.W. Bush administration in the Department of Justice and the Office of the White House Counsel, before spending 14 years in private law practice . During this time, he argued 39 cases before the Supreme Court . Notably, he represented 19 states in United States v. Microsoft Corp . </P>

Who is current chief justice of supreme court