ABC World News Tonight with David Muir Full Broadcast - July 17, 2024

Diagnosed with COVID-19, Pres. Biden faces a critical juncture in his re-election campaign, as Mary Bruce and Jon Karl report on how Biden is now more receptive to hearing out calls for him to step aside, according to a senior administration official; five days after an attempted assassination nearly took his life, Rachel Scott has details on former Pres. Trump’s address at the RNC; Pierre Thomas has the latest on the attempted assassination of former Pres. Trump, including the dramatic new video showing the chaotic moments as the shooting unfolded, and what sources told ABC News about the search history in the suspect's phone; David Muir remember the life and legacy of comedian Bob Newhart, who died at age 94; and more on tonight’s broadcast of World News Tonight with David Muir.