John Edwards explains what he feels is at stake during this election, including changing special interests. --- Iowa Public Television broadcast "The Des Moines Register Presidential Debates" live from the Iowa Public Television Maytag Auditorium in Johnston, Iowa on December 13, 2007. This forum, featured six of the Democrat candidates for President: Delaware Sen. Joe Biden; New York Sen. Hillary Clinton; Connecticut Sen. Christopher Dodd; former North Carolina Sen. John Edwards; Illinois Sen. Barack Obama; New Mexico Gov. Bill Richardson. For more information, visit "The Des Moines Register Presidential Debates" on Iowa Public Television. http://www.iptv.org/campaign08