McElroy. The bishop of San Diego is set to become the new Archbishop of Washington, D.C. McElroy, 70, will succeed retiring Cardinal Wilton D. Gregory in March. Until a new bishop is named, an administrator will oversee the San Diego diocese on an interim basis,

Cardinal Walter McElroy of San Diego is named by Pope Francis to replace the retiring Cardinal Wilton Gregory leading the Archdiocese of Washington, D.C.