A. the president has constitutional authority to initiate and negotiate treaties whereas congress only has statutory authority. b. congress cannot initiate treaties, and can only consider them once they have been negotiated by the president. c. the united states is the most powerful government in the world, giving the president an advantage when negotiating with foreign leaders. d. while congressional leaders can initiate treaties, only the president has the power to ratify them. e. leaders in congress have a more difficult time agreeing on treaties with foreign leaders than the president does.