At an event celebrating the city's native son, Cardinal Blase Cupich spoke on immigration and the undocumented in his "Sermon on the Mound."

CHICAGO (RNS) — At Rate Field, the home of the Chicago White Sox, some 30,000 celebrated a native son, Pope Leo XIV, Saturday afternoon (June 14) at a Mass organized by the Archdiocese of Chicago. Leo appeared via video from Rome, in a prerecorded message encouraging young people to engage in the community of the church.