In this study of lobbyists' techniques and perceptions of the legislative process, the impact of several aspects of the legislative environment is examined, including group competition and the use of issues by candidates in presidential campaigns. Data from a sample of lobbyists indicates that nonconflictual issues are treated differently by lobbyists and the Congress from issues involving group conflict. Similarly, issues used in presidential campaigns are treated differently from those developed outside them. Finally, group size is shown to be a further influence on lobbyists' techniques in dealing with Congress.