Episode Details

Following the death of music legend, actress, businesswoman and philanthropist Dolly Parton at age 80, David Muir looks back at her life – from her humble country roots in Tennessee, to her award-winning career that spanned more than six decades; Rachel Scott reports on Canada imposing retaliatory tariffs of up to 50% on over 700 U.S. products after Pres. Trump's steep new tariffs on Canadian goods; with the start of NFL season just two weeks away, Steve Osunsami has details on the new study that’s found at least 25% of former NFL players who died between 2016 and 2021 may have had the degenerative brain disease CTE; and more on tonight’s broadcast of World News Tonight with David Muir.

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