Vice President-elect Mike Pence greets Maj. Mark E. Carl, 89th Air Lift Wing Flight Line Protocol director, and his wife, at Joint Base Andrews, Md., Jan. 9, 2017. Pence was in the area in preparation to take office on Jan. 20. (U.S. Air Force photo by Staff Sgt. Stephanie Morris)

Vice President-elect Mike Pence exits a plane, at Joint Base Andrews, Md., Jan. 9, 2017. Pence was in the area in preparation to take office on Jan. 20. (U.S. Air Force photo by Staff Sgt. Stephanie Morris)

Vice President-elect Mike Pence, greets Staff Sgt. Steven Howard, 89th Aerial Port Squadron special air missions supervisor, at Joint Base Andrews, Md., Jan. 9, 2017. Pence was in the area in preparation to take office on Jan. 20. (U.S. Air Force photo by Staff Sgt. Stephanie Morris)

Vice President-elect Mike Pence greets Airmen from the 89th Airlift Wing, at Joint Base Andrews, Md., Jan. 9, 2017. Pence was in the area in preparation to take office on Jan. 20. (U.S. Air Force photo by Staff Sgt. Stephanie Morris)