If one were asked to describe the process of policy change in the United States in one word, that word would surely be ‘incremental’. Students of the Congressional process can point to a number of factors which account for delay in changes of policy; it is only recently that they have begun to examine the occasional departures from Congressional intractability in matter of public policy. This paper seeks to further our understanding of how internal legislative conditions can produce or inhibit policy change. While the first scholars to call attention to this phenomenon noted that policy changes followed critical realignments, others have made a more general case for the ability of Congress to pass important legislation, arguing that Congressional potential for policy change depends largely upon the interactive effects of both majority and minority size and unity. Policy changes have been enacted by those Congresses with large and/or cohesive majorities and small and/or disorganized minorities. These conditions often follow realigning elections, but occur at other times as well.
