Why Iowa? : because the rules matter
What we know and what we don't about presidential nomination campaigns
Candidate campaigns in Iowa: grassroots or mass media politics?
The Iowa grass roots : participation in the 2008 caucuses
Decided by the few : are the Iowa caucuses representative? / with Daniel C. Bowen
Effects of Iowa and new Hampshire in U.S. presidential nomination contests 1976-2008 / with Rob Hunsaker
The micro foundations of momentum
Participation and engagement in 2008 caucuses and primaries / with William W. Franko
Reforming the presidential nomination process / with Daniel C. Bowen
Why Iowa? : continuity and change in presidential nominations.