20/20's David Muir delivered a 'grateful' message and a rare life update with fans who loved his new photos ...

Although it's not uncommon for David Muir to have fill-in anchors on his World News Tonight show when he's absent, this ABC host hasn't covered for him for months until now ...

ABC anchor David Muir issued a grave warning as a "violent intestinal illness" spread to 41 states, with more than 11,000 ...

ABC's World News Tonight anchor David Muir shared a glimpse of his serene weekend by his lakeside home, take a look ...

Trump's attack came after Muir reported on ABC's World News Tonight that the Reflecting Pool had been drained for a second ...

David Muir has taken to his Instagram account to give his diehard fanbase a glimpse into his life away from ABC World News ...

David Muir is often called out for his appearance on World News Tonight by viewers, with some taking to social media to give the ABC host a specific 4-word nickname ...

David Muir, Diane Sawyer and Deborah Roberts talk to USA TODAY about ABC's 24-hour live broadcast for America 250 and the ...

CBS Evening News lost ground in the key demographic despite a slight rise in total viewers during the latest ratings week.

Watch ABC News live news stream and get 24/7 latest, breaking news coverage, and live video. "World News Tonight" anchor David Muir kicked off ABC News' celebration of America's 250th birthday by ...