FILE - Robert W. McElroy, bishop of the diocese of San Diego, walks in St. Peter's Square to attend a conference on nuclear disarmament at the Vatican, Friday, Nov. 10, 2017. When San Diego Bishop McElroy receives his prestigious red hat at the Vatican on Saturday, he will bring to the College of Cardinals a fervent loyalty to Pope Francis that has often put him at odds with the conservative majority in the U.S. Conference of Catholic Bishops. (AP Photo/Andrew Medichini, File)