Carter and Scott combine extensive quantitative analysis, interviews with members of Congress and their staff, and case studies of key foreign policy entrepreneurs, including Frank Church, William Fulbright, Jesse Helms, Edward Kennedy, Pat McCarran, and Curt Weldon. Drawing on their empirical data, the authors identify the key variables in foreign policy entrepreneurship, including membership in the Senate or House, seniority and committee assignments, majority or minority party status, choice of foreign policy issues, and the means used to influence policy. By illuminating the roles and impact of individual members of Congress, Carter and Scott contribute to a more nuanced understanding of the broader U.S. foreign policy-making process.