One of journalism's most provocative and outspoken voices, Keith Olbermann delivers independent, razor-sharp commentary on the top five news stories of the day, interviewing news subjects and regular guests and contributors. A long list of regular contributors includes filmmaker Michael Moore, Rolling Stone journalist Matt Taibbi; John Dean, former White House counsel to President Richard Nixon; comedian and activist Maysoon Zayid; Kate Sheppard, Mother Jones energy and investigative journalist and author Jeremy Scahill. Interspersed are such segments as "Worst Persons in the World," "Time Marches On" and Olbermann's occasional "Special Comment." The show's regular guest host is David Shuster.