St. Matthew's Cathedral, where Biden attended pre-inauguration Mass, has long been a place where politics and faith meet
Joe and Jill Biden attend Mass at St. Matthew the Apostle before the inauguration.
AP Photo/Evan Vucci
Steven P. Millies, Catholic Theological Union
Prior to being sworn in as the 46th president of the United States – and only the second Catholic to hold the post – Joe Biden attended Mass.