Structured

Perhaps no separation of powers issue receives as much scholarly attention as the near monopoly modern presidents exert over foreign policy. Yet, despite an extensive literature on the subject, scholars have drawn different conclusions as to the causes of this change, finding that lawmakers either defer to the president or are equal and coordinate actors on foreign policy. Using the separation of powers as a guide, I attempt to rectify these differences and demonstrate instances in the roll call record where examples of both explanations are most evident. Recovering ideal point estimates between the 87th and 112th Congress on votes highlighting competing governmental objectives, findings show that the chamber median frequently shifts toward the president on foreign policy votes in the final passage stage and during the treaty process. However, evidence also shows Congress is less likely to defer to the president on domestic legislation and appropriations