An interesting and empirically sound study of interest group coalitions on Capitol Hill... The book is filled with findings that are both theoretically interesting and potentially useful for political operatives. Perspectives on Political Science In this very welcome book Hula addresses a real void in the literature on interest groups by analyzing the general idea of interest coalitions. While other studies have examined various forms of group interaction in one or more policy domains, Hula sticks to the subject of coalitions with audacity and does so very thoroughly indeed ... Methodologically the study is well grounded ... Recommended for all levels. Choice