On the day of the Iowa caucus, we'll look at the campaign strategy for what happens after Iowa. Will victory in Iowa launch one of the candidates to the nomination, and will a disappointing result mean the end of the road for others?
Jason Johnson: associate professor of political science and communications at Hiram College in Ohio and political editor for "The Source." He is the author of "Political Campaigns and Consultants: One Day to Sell."
Craig Robinson: founder and editor-in-chief of The Iowa Republican. Robinson got his first taste of Iowa politics in 1999 while serving as Steve Forbes' southeast Iowa field coordinator where he was responsible for organizing 27 counties.