FROM CNN's Jack Cafferty: If it's 2011, it must be 2012… And that means another presidential campaign is already under way. That's unfortunate, but we really don't have a choice. [cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2011/images/01/20/art.2012.campaign.jpg caption=""] Potential Republican challengers to President Obama are popping up everywhere. You can spot them in the early voting states – like New … Continue reading Ready for start of 2012 presidential campaign?