Study: Iowa, N.H. Have More Impact On Campaigns

Two economics professors who set out to measure the influence of early primaries and caucuses on the electoral process found that states like Iowa and New Hampshire may have a disproportionate influence on who gets elected. They write that the "overweighting of early voters ... represents a deviation from the democratic ideal of 'one person, one vote.'" Michele Norris talks with Brian Knight, associate professor of economics at Brown University, about his paper, co-written with Nathan Schiff. It's called "Momentum and Learning in Presidential Primaries."