Now this is Grinding! Check out David Gergen grinding for the good of America. David has been working hard for over 30 years as a Commentator, editor, teacher, public servant, best-selling author and adviser to four presidents. We salute his constant commitment to public service, critical thinking, hard work and determination. He recently caught our eye with coverage of his son Chris’ eight day race across America for charities so check out Chris as well at http://twitter.com/cgergen.