David Muir's predecessor on World News Tonight, Diane Sawyer, shared her thoughts on the ABC News anchor in a recent tribute, ...

David Muir, anchor of "ABC's World News Tonight" and co-anchor of "20/20," was named in TIME's list of most influential ...

David Muir, who was named in the TIME100 Most Influential People of the year, received a touching tribute written by ...

Syracuse native David Muir has been named one of the most 100 influential people in the world.