JOINT BASE ANDREWS, MD - SEPTEMBER 22:  (EDITORS NOTE: Retransmission with alternate crop)  Pope Francis (L) is escorted by U.S. President Barack Obama as he greets and other political and Catholic church leaders after arriving from Cuba September 22, 2015 at Joint Base Andrews, Maryland. Francis will be visiting Washington, New York City and Philadelphia during his first trip to the United States as Pope.  (Photo by Chip Somodevilla/Getty Images)