Volunteers for Hillary Clinton in Des Moines, Iowa

Right now, it’s silly season in politics. The mainstream media, the presidential primary candidates and their campaigns are serving up small shiny objects, and the public is lapping them up. On the Democratic Party side, in the primary race between Hillary Clinton and Bernie Sanders, these shiny objects range from coin tosses to speaking fees to the definition of a “progressive” to “Berniebros.” But hidden behind these superficial stories is some cold hard math involving delegates and demographics.

President Obama and First Lady Michelle Obama after clinching 2008 Democratic presidential nomination

Last night, one week before the Iowa Caucus, CNN hosted a Town Hall event at Drake University in Des Moines, Iowa, featuring Democratic presidential candidates Hillary Clinton, Bernie Sanders and Martin O’Malley. The three candidates showed differences in their views and policies while answering questions from the audience of mostly undecided Democratic voters and from moderator Chris Cuomo. But perhaps more striking was the level of knowledge, substance and forcefulness each candidate exhibited on the issues.