Although quantitative studies have identified relationships between the interests of powerful, wealthy states and the lending patterns of international financial institutions, they do not illuminate influence processes that give rise to these patterns. Three closely held internal assessments by the U.S. government of its influence over decisions in various international organizations are now declassified; they provide information about internal processes unlikely to be obtained through interviews of current officials or observation of public behavior. Their findings overlap to some degree academic research on this phenomenon, but also reveal hitherto unsuspected facets of U.S. diplomacy as well as candid internal assessments of U.S. successes and failures.