BERLIN, GERMANY - MAY 25: German Chancellor Angela Merkel and former President of the United States of America Barack Obama arrive for a discussion on democracy at Church Congress on May 25, 2017 in Berlin, Germany. Up to 200,000 faithful are expected to attend the five-day congress in Berlin and Wittenberg which is celebrating the 500th anniversary of the Reformation. (Photo by Steffi Loos/Getty Images)
