Before revision: Historic development There has been a long-term trend of increasing interest groups influence on the formulation of foreign policy in the United States according to John Dietrich: "Beginning in the early 1970s and continuing into the post-Cold War era, the U.S. foreign policy-making system has been transformed from the relatively closed and presidential dominated system of the early cold war into a more open, contentious, and pluralistic system.
After revision: Historic development "Beginning in the early 1970s and continuing into the post-Cold War era, the U.S. foreign policy-making system has been transformed from the relatively closed and presidential dominated system of the early cold war into a more open, contentious, and pluralistic system.