ROME - The new Chicago-raised Pope Leo XIV faces an immediate challenge in his native country: taming the brawling U.S. tribe of Catholics, riven by political divisions that have thwarted the will of his predecessors.

Leo, the first American pope, told the cardinals who elected him that he was fully committed to the reforms of the Second Vatican Council, the 1960s meetings that modernized the church. He identified AI as one of the main issues facing humanity, saying it poses challenges to defending human dignity, justice and labor.