David Muir has sent fans into a tizzy with his latest reporting on a series of hard-hitting news stories after he swapped his ...

WATCH: David Muir's longstanding friendship with this major celebrity revealed. However, the 20/20 host insists that it's simply not the case, it's just his signature pose. ...

Who is David Muir? David Muir is a broadcast journalist who is the host and managing editor of "ABC World News Tonight with David Muir." The news show airs daily on ABC News at 6:30 p.m. ET. Muir, ...