Pope Leo XIV celebrating his first mass as pope at the Sistine Chapel. Live updates: abcnews.go.com/International/live-updates/papal-conclave-live-updates-cardinals-gather-vatican-elect/?id=121506573 #pope #popeleo #sistinechapel ––– Subscribe to ABC News on YouTube: abcnews.visitlink.me/59aJ1G Watch 24/7 coverage of breaking news and live events on ABC News Live: youtube.com/watch?v=gN0PZCe-kwQ&ab_channel=ABCNews Watch full episodes of World News Tonight with David Muir here: youtube.com/playlist?list=PLQOa26lW-uI8ixlVw1NWu_l4Eh8iZW_qN&feature=shared Read ABC News reports online: abcnews.go.com ABC News Digital is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. ABC News is the home to the #1 evening newscast “World News Tonight” with David Muir, “Good Morning America,” “20/20,” “Nightline,” “This Week” with George Stephanopoulos, “ABC News Live Prime” with Linsey Davis, p...