Defense Secretary Ash Carter and Supreme Court Justice Elena Kagan leave Carter's office to go to the Pentagon's auditorium, March 6, 2015, where Kagan will administer the oath of office to Carter. Defense Secretary Ash Carter and Supreme Court Justice Elena Kagan leave Carter's office to go to the Pentagon's auditorium, March 6, 2015, where Kagan will administer the oath of office to Carter. SHARE: Download: Full Size (3.71 MB) Tags: Photo Essays Credit: VIRIN: 812647-W-XFC47-623.jpg Photo Gallery