In Wisconsin, Mary Bruce reports on Vice Pres. Kamala Harris hitting the campaign trail in the battleground state for the first time as the presumptive Democratic nominee; sources told ABC News the Secret Service has urged Donald Trump’s campaign to stop holding outdoor rallies – Pierre Thomas has the latest details, including the resignation of Secret Service Director Kim Cheatle’s 10 days after the attempted assassination of the former president; Mola Lenghi has details on tourists at Biscuit Basin in Yellowstone National Park left running for safety after a geyser suddenly exploded, sending a black plume of steam and debris flying in the air; and more on tonight’s broadcast of World News Tonight with David Muir.
00:00 Intro
02:10 Vice Pres. Kamala Harris campaigns in battleground Wisconsin
07:30 Pres. Biden prepares to speak to the nation from the Oval Office
09:41 Sources: Secret Service urges Trump campaign to stop holding outdoor rallies
12:00 Tourists flee exploding geyser in Yellowstone National Park’s Biscuit Basin area
13:24 30 million in West under heat alerts as heavy rain, flooding threaten Texas to Mid-Atlantic
14:22 Delta Air Lines under federal investigation after flight disruptions
14:38 Sonya Massey’s family demand justice after video of Illinois sheriff’s deputy fatally shooting her
16:22 Humpback whale breaches water, lands on boat off coast of New Hampshire
16:40 Earth reaches hottest day ever recorded on July 21
17:11 Celine Dion reportedly making musical comeback at Paris Olympics
17:34 Late ‘Jeopardy!’ host Alex Trebek memorialized on new stamp
17:58 America Strong: Mother hears nonverbal daughter with autism say "I love you" for first time
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.
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