Who has the authority to approve treaties?

The Senate has the authority to approve treaties, which is a critical component of the U.S. government's system of checks and balances. According to the Constitution, specifically Article II, Section 2, the President can negotiate and sign treaties, but these treaties must be ratified by a two-thirds majority in the Senate to become law. This process ensures that no single person has unilateral power over significant international agreements, reinforcing the idea that the Senate represents the interests of the states and provides a check on presidential power.

The other governmental bodies mentioned do not have this specific authority. The House of Representatives is involved in the legislative process, but it does not play a role in treaty approval. The Supreme Court interprets and applies the law but does not have the power to approve or disapprove treaties.