President Barack Obama and first lady Michelle Obama greet Pope Francis upon his arrival at Andrews Air Force Base, Maryland, Sept. 22, 2015.
President Barack Obama greets Pope Francis upon his arrival at Andrews Air Force Base, Md., Sept. 22, 2015.
U.S. President Barack Obama (R) welcomes Pope Francis upon his arrival at Joint Base Andrews outside Washington, D.C., Sept. 22, 2015.
Pope Francis, left, is greeted by U.S. President Barack Obama and first lady Michelle Obama upon his arrival at Joint Base Andrews outside Washington, Sept. 22, 2015.
