David Muir is the anchor and managing editor of "World News Tonight with David Muir," the most-watched newscast in the U.S., and co-anchor of ABC's "20/20." Muir's reporting has been honored with ...

Luck gave everything to his shortened career as a quarterback. Now he’s back in the fray as the Cardinal’s first general ...

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 ...

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

Fellow longtime anchor David Muir was among the many journalists who shared their surprise with messages bidding Lester farewell (he will be moving to a full-time position on Dateline).

David Muir and George Stephanopoulos have reportedly been at odds for months, over their seniority at ABC news.

Lester Holt's ratings rival David Muir has paid tribute to the outgoing NBC Nightly News anchor in a glowing tribute post. The host of ABC World News Tonight penned the homage Monday ...

In a "20/20" special report, David Muir weaves together two decades-long probes. In 1988, 19-year-old Cathy Swartz was a young mother living with her fiancé Mike Warner and her 9-month-old baby ...

ABC's World News Tonight anchor David Muir shared a message celebrating NBC anchor Lester Holt following news of his departure from NBC Nightly News, ...

David Muir has already had quite a big year, and we still have nearly three months left before it ends! Between marking ...

The Walt Disney Co.-owned news and entertainment divisions are cutting 6% of their workforce. Data journalism unit 538 is ...