FROM CNN's Jack Cafferty: They nearly tore the Democratic Party apart the first time around, yet some are hoping for a Hillary Clinton/Barack Obama rematch in 2012. [cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2010/images/01/28/art.clinton.obama.jpg caption="(FILE PHOTO) Clinton and Obama during the April 2008 debate in Philadelphia."] When President Obama brought Clinton on-board as his Secretary of State after a long … Continue reading Should Hillary Clinton challenge Obama in 2012?