Ronald Reagan's election in 1980 brought with it a major shift in the composition of the U.S. Congress for the first time in several decades. The subsequent introduction of an enormous amount of new legislation sparked debate among many political observers that a new coalition was being built in American politics and that a significant change in the issues on the agenda before Congress heralded a Republican realignment.

Barbara Sinclair's study is a major contribution to our understanding of realignment politics in the House of Representatives. It also provides important insight...