As of July 2015, the Supreme Court justices include Clarence Thomas, Antonin Scalia, John G. Roberts, Anthony M. Kennedy and Ruth Bader Ginsburg, states Supreme Court of the United States. The remaining justices are Sonia Sotomayor, Stephen G. Breyer, Samuel A. Alito, Jr. and Elena Kagan. There are also three retired Supreme Court justices: Sandra Day O'Connor, David H. Souter and John Paul Stevens.
Roberts presides as chief justice of the United States. Roberts was appointed to his position in 2005 by President George W. Bush, notes Supreme Court of the United States.
The court is fairly evenly divided between conservative and liberal justices, reports The New York Times. Ginsberg, Sotomayor and Kagan represent the most liberal faction of the court, voting for liberal issues around 70 percent of the time. Breyer is viewed as a more moderate liberal, supporting liberal decisions about 59 percent of the time.
Conservative justices include Thomas, Scalia, Roberts and Alito, according to the New York Times. Justice Kennedy's voting record places him squarely in the middle of the conservative and liberal blocs.
Most Americans favor the establishment of term limits for Supreme Court justices, according to The National Law Journal. The Constitution establishes life tenure for Supreme Court appointees.