Explainer: Cardinal Tobin will now help Pope Francis pick bishops. What does that mean for the U.S. Church?Pope Francis appointed Cardinal Joseph W. Tobin of Newark, N.J., to the Vatican’s influential Congregation for Bishops on March 4, filling the position left open when Cardinal Donald W. Wuerl, the former archbishop of Washington, D.C., retired in November from his Vatican roles.Cardinal Tobin joins Chicago’s Cardinal Blase Cupich as one of two Americans on the congregation. The two will play a key role in choosing bishops for the United States in particular, as congregation members generally have significant sway within the body...