Scott Cameron, NPR
The stage is set for the NPR debate, scheduled to take place at the State Historical Museum in Des Moines, Iowa on Tuesday.
On Tuesday, NPR's Robert Siegel, Michele Norris and Steve Inskeep will moderate a radio-only debate in Des Moines, Iowa with seven Democratic presidential candidates.
Callers weigh in with the questions that they would like to hear asked of the 2008 Democratic presidential hopefuls.
Steve Inskeep, co-host of NPR's Morning Edition
Michele Norris, co-host of NPR's All Things Considered
Robert Siegel, co-host of NPR's All Things Considered