Who is the current Chief Justice of the United States?

The current Chief Justice of the United States is John Roberts. He was appointed to the Supreme Court by President George W. Bush and has served as Chief Justice since September 2005. As the Chief Justice, Roberts presides over Supreme Court proceedings and plays a pivotal role in guiding the Court's decisions, managing its schedule, and serving as the head of the judicial branch of the federal government. His leadership is significant in shaping legal interpretations and principles within the Court, particularly during cases that deal with crucial constitutional issues. In contrast, Ruth Bader Ginsburg, Clarence Thomas, and Anthony Kennedy served in different roles within the Supreme Court but do not currently hold the position of Chief Justice. Ginsburg was widely known for her progressive stance until her passing in 2020, while Thomas and Kennedy have both had substantial influence on the Court but at different times, with Kennedy retiring in 2018.