Beliefs Pope Francis arrives, reassures US: ‘I’m a Catholic, not a communist!’ (ANALYSIS) By David Gibson | September 22, 2015 ShareTweet EmailPrint More More on Beliefs Subscribe to Beliefs U.S. President Barack Obama welcomes Pope Francis to the United States as the Pontiff shakes hands with dignitaries upon his arrival at Joint Base Andrews outside Washington on September 22, 2015. REUTERS/Kevin Lamarque *Editors: This photo may only be republished with RNS-POPE-ARRIVAL, originally transmitted on September 22, 2015. Active RNS subscribers and members can view this content by logging-in here.(RNS) Francis is a force to be reckoned with. It’s just that no one is sure exactly how, or whether, the reckoning will happen, or what effect it could have. But everyone is scrambling to try to keep ahead of an unpredictable pontiff.