190227-N-AM903-1055 Evan Sisley, personal aide and senior medic to former President George H.W. Bush, speaks during the Sully H.W. Bush welcome-aboard celebration held at the USO Warrior and Family Center in Bethesda, Md., Feb. 27, 2019. Sully is now assigned as a service dog at Walter Reed National Military Medical Center. SHARE IMAGE: Download Image: Full Size (1.38 MB) Photo By: Petty Officer 3rd Class Julio Martinez Martinez VIRIN: 190227-N-AM903-1055.JPG Photo Gallery