ABC World News Tonight with David Muir Full Broadcast - Aug. 12, 2024

Melissa Adan reports on the “significant” magnitude-4.4 earthquake that rocked the Los Angeles region; with the election just 85 days away, Selina Wang has details on the new battleground polling that shows Vice Pres. Harris leading former Pres. Trump in three crucial Rust Belt states; as Iran and Hezbollah promise retaliatory attacks on Israel, Tom Soufi Burridge has the latest on the U.S. "strengthening" its capabilities in the region by sending an additional missile submarine and a second aircraft carrier; and more on tonight’s broadcast of World News Tonight with David Muir.