commentary on one selected individual (either Donald Trump or someone associated with his administration) followed by a brief rundown of other news headlines. Beginning with the fifteenth episode, dated October 27, the series was renamed "Olbermann vs. Trump". "Time Marches On" segment In the "Time Marches On" segment, another nightly feature, Olbermann showed footage of strange news stories from around the world. The segment was originally called "Oddball", a reference to the MSNBC program Hardball with Chris Matthews. The "Keith number" During the 2008 U.S. Presidential Primary season, Olbermann began using the term "Keith number" in reference to the sum of a pre-election opinion poll's margin of error and the percentage of respondents who are undecided. Olbermann believes this value tends to be predictive of the extent to which a poll may vary from actual election results, and also of the volatility of the electorate's leanings. To summarize: The greater the poll's margin of error, the farther the results may be from the current views of the voters. The more undecided voters, the more likely voters are to change their views in the future. On the January 11, 2008, episode of Countdown, Olbermann described the number as follows: Olbermann's "Keith number" is unrelated (mathematically or otherwise) to the more traditional use of the term. Criticism and response Olbermann has addressed the assertions of liberal bias by stating that he would be equally critical of a Democratic president who had invited criticism by his actions: I mean, no one in 1998, no one accused me of being a liberal in 1998 because I was covering the Lewinsky scandal. And whatever I had to do about it, I tried to be fair and honest and as accurate and as informed as possible, and allow my viewer to be the same way. And nowadays it's the same thing. And now all of a sudden I'm a screaming liberal. However, Howard Kurtz has written that Olbermann departed MSNBC the first time as a result of the Clinton-Lewinsky coverage, which he did not personally agree with. Elsewhere, Los Angeles Times TV critic Howard Rosenberg commented on the show's absence of guests who challenged Olbermann's views, writing: "'Countdown' is more or less an echo chamber in which Olbermann and like-minded bobbleheads nod at each other." On November 25, 2006, Fox News Watch panelist Cal Thomas named Olbermann as his choice for 2006's "Media Turkey Award" for