CEREMONIAL SWEARING-IN Supreme Court Justice Elena Kagan administers the oath of office to Defense Secretary Ash Carter as his wife, Stephanie, holds the Bible and their children, Ava and Will, look on during a ceremonial swearing-in at the Pentagon, March 6, 2015. Vice President Joe Biden officially swore in Carter as the 25th secretary of defense last month. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 672643-M-DQD06-317.jpg Photo Gallery