CBS News’ Norah O'Donnell has covered two papal conclaves, including the election of Pope Francis. She reflects on the historic moment when white smoke rose from the Sistine Chapel and Pope Leo XIV emerged from St. Peter’s Basilica. Cheers erupted in St. Peter’s Square as white smoke rose from the Sistine Chapel, signaling the election of a new pope. CBS Mornings’ Tony Dokoupil was in the crowd and captured the moment.