John Prevost told "CBS Mornings" he found out his brother was the next pope with everyone else – after hearing his name announced on the balcony of St. Peter's Basilica on TV.

Pope Leo XIV, the first American leader of the Catholic Church, previously known as Robert Francis Prevost, returned to the Sistine Chapel the day after his election to deliver a mass for the College of Cardinals, where he described his role as both a cross to bear and a blessing and urged church leaders to make themselves “small.”