It’s a sitting duck for interest groups.

Why hasn’t the United States stepped up to the plate? According to scholars and policymakers, one major reason is the fear of treaties infringing on national sovereignty. The United States shuns treaties that appear to subordinate its governing authority to that of an international body like the United Nations. The United States consistently prioritizes its perceived national interests over international cooperation, opting not to ratify to protect the rights of U.S. businesses or safeguard the government’s freedom to act on national security. Politics also poses a significant barrier to ratification. While presidents can sign treaties, ratification requires the approval of two-thirds of the Senate. Oftentimes, the power of special interest groups and the desire of politicians to maintain party power, on top of existing concerns of sovereignty, almost assures U.S. opposition to treaty ratification.