ABC World News Tonight with David Muir Full Broadcast - Aug. 12, 2024br br 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.br br 00:00 Intro br 02:09 "Significant" 4.4 magnitude earthquake rattles Los Angeles regionbr 06:03 Tropical Storm Ernesto could impact Puerto Rico and the U.S. Virgin Islandsbr 10:32 New polling shows Kamala Harris ahead of Donald Trump in Pennsylvania, Michigan, Wisconsinbr 11:00 FBI investigating alleged hack of Trump campaign emailsbr 13:09 U.S. deploys guided missile submarine to Middle Eastbr 15:19 Ukrainian troops gain ground inside Russia's western Kursk regionbr 15:38 Black boxes, engines recovered in deadly Brazil plane crash that killed 62br 16:15 Thousands in Greece flee fast-moving wildfirebr 16:47 Authorities investigating gas leak blamed for home explosion outside Baltimore, Marylandbr 17:10 FDA approves nasal spray for emergency allergic reactionsbr 19:50 Angela Bassett, Harrison Ford, Kelly Ripa, among those honored at 2024 Disney Legends Awardsbr br ABC World News Tonight with David Muir delivers the news that matters most. Watch to get the latest news stories and headlines from around the world.