Who is the current Chief Justice of the United States?

The current Chief Justice of the United States is John Roberts. He has held this position since September 29, 2005, after being nominated by President George W. Bush. As Chief Justice, Roberts presides over the Supreme Court and is responsible for leading the Court's operations, deciding cases, and influencing the court's agenda. His role includes not only presiding over oral arguments and court conferences but also writing significant opinions on fundamental legal questions that impact the interpretation of the Constitution and federal law.

The other individuals mentioned were all prominent justices, but none currently hold the Chief Justice position. Ruth Bader Ginsburg served on the Supreme Court until her passing in 2020 and was known for her influential work on gender equality and civil rights. Clarence Thomas has been an Associate Justice of the Supreme Court since 1991, representing a more conservative viewpoint. Anthony Kennedy also served as an Associate Justice, known for being a key swing vote until his retirement in 2018.