Fox News is taking on CNN in another print ad today. Last night TVNewser told you about the ad taken out in the Chicago Tribune. Now HuffingtonPost has the story behind another ad which is running today in the The Washington Post, Multichannel News and The Wall Street Journal (probably got a discount on that last one.)

The ad uses last week's Pew Research Center study about where democrat and republican viewers get their news, and it brands CNN as a "partisan" news channel.

Click continued to see the ad...