Anyone watching CNN already has their mind made up anyhow. The key is the fodder that will come out of this that can be use in the elections next year.
I'm afraid I know too many people up here in the northeast (including friends and family) who are Republicans/independents/swing voters, etc., who only pay for basic cable or "America's Top 50" on Dish Network (I don't know about DirecTV). CNN is the only cable news network included in these basic packages.
Also, there are far too many people up here who STILL believe CNN is THE cable news network to tune into, based on its success back during the Gulf War in the early 90s. They're not all necessarily liberals, just "busy" and misinformed...