Democratic debate in Des Moines (17 images)

Democratic Presidential candidates (L-R) Bernie Sanders, Hillary Clinton, and Martin O'Malley take part in a photo opportunity prior to the second Democratic Presidential debate at Drake University in Des Moines, Iowa on November 14, 2015. Photo by Steve Pope/UPI

Democratic Presidential hopeful Bernie Sanders takes part in a photo opportunity prior with to the second Democratic Presidential debate at Drake University in Des Moines, Iowa on November 14, 2015. Photo by Steve Pope/UPI

Democratic Presidential hopeful Hillary Clinton takes part in a photo opportunity prior with to the second Democratic Presidential debate at Drake University in Des Moines, Iowa on November 14, 2015. Photo by Steve Pope/UPI

Democratic Presidential hopeful Martin O'Malley takes part in a photo opportunity prior with to the second Democratic Presidential debate at Drake University in Des Moines, Iowa on November 14, 2015. Photo by Steve Pope/UPI