As he has in his apperances with Oprah, Obama quotes MLK's "fierce urgency of now" in reference to restoring America's standing in the world, creating economic security, and battling climate change. Edwards is more combative and populist, saying jobs, the middle class, and health care are all at risk because of "corporate power and corporate greed in Washington, D.C. You can't make a deal with them, you can't make them go away. You have to be ready to fight." --Dana Goldstein