Heidi Gutman/ABC News David Muir is the anchor and managing editor of ABC World News Tonight with David Muir, the most-watched newscast in the U.S., and co-anchor of ABC’s 20/20. Muir’s ...

The first week of March yielded mixed results for the three evening newscasts. The CBS Evening News was the only newscast to ...

David Muir and Deborah Roberts bid an emotional farewell on Friday when they revealed a big change to their 20/20 show.

Friday, March 14 ––– Subscribe to ABC News on YouTube: ABC News is your daily source of breaking national and world news, ...

Trump orders attacks against Houthis in Yemen Trump said the US will use "lethal force until we have achieved our objective." ...

Tuesday, March 11 | ABC News ––– Subscribe to ABC News on YouTube: ABC News is your daily source of breaking national and ...

Trump signs funding bill After Congress averted a government shutdown, President Donald Trump signed the funding bill to keep ...

David Muir was spotted in a small community near the Orlando, Fla., area. So why is he in Orlando? Here's what we know.