CNN Bias during Iowa Caucus

I watched the Iowa Caucus on CNN on January 3. I normally don't watch CNN because I believe they are biased, but I chose CNN because they were giving good explanations, as well as showing pretty good coverage of the local events. It got rather annoying that they would switch to coverage of local events, and the host would say "Let's listen in," at times when nobody was speaking or saying anything noteworthy.

One thing in particular that struck me as interesting during the night was their pie charts showing the standings of each candidate. I'm speaking of the large pie charts that they showed on the screen, and not of the little charts rotating at the bottom of the screen.

Throughout the night the Republican chart showed Huckabee with 35-38%, Romney with around 25%, McCain & Thompson with 13% each, then left a large empty space on the pie chart.

The Democratic chart on the other hand showed Obama with around 38%, Edwards and Clinton with around 29-33% each, and Richardson with 2%, leaving a very small section of the pie chart empty.

Why did they pretty much fill the Democratic chart, but not the Republican chart? Paul had 9-10% throughout the night, and Giuliani had 3%, yet they were both left out of the Republican chart. Why leave them out when they had more than Democratic follower Richardson who had only 2% but was included?

I will admit I've gotten to like Paul, and have to question their motives. I'm sure they would have included Giuliani, but then they would have to explain why they left Paul off, so they just left them both off.

Images borrowed from Matt Stooks