UNITED STATES - SEPTEMBER 08:  U.S. Supreme Court Chief Justice John Roberts, right, departs after posing for photos with Justice Sonia Sotomayor following Sotomayor's taking a ceremonial oath of office in Washington, D.C., U.S., on Tuesday, Sept. 8, 2009. The ceremony, called an investiture, was attended by President Barack Obama and Vice President Joseph Biden.  (Photo by Joshua Roberts/Bloomberg via Getty Images)