What major role does the Senate play regarding treaties?

The Senate's major role regarding treaties is to ratify them by a supermajority vote. According to the U.S. Constitution, specifically Article II, Section 2, the President has the authority to negotiate treaties with foreign nations, but these treaties must be presented to the Senate for approval. The Senate must then provide its consent, which requires a two-thirds majority (supermajority) vote to ratify the treaty.

This process ensures that treaties reflect a broader consensus within the federal government, rather than simply the President's decision. The requirement of a supermajority serves as a check on executive power, making it difficult to ratify treaties without significant support from both parties in the Senate.

In contrast, other choices such as creating, enforcing, or negotiating treaties are not roles assigned to the Senate. While the President negotiates treaties, the Senate does not engage in this process. Similarly, the enforcement of treaties falls under the executive branch's jurisdiction, as it is responsible for implementing and upholding the laws and agreements established through treaties. Thus, the Senate's role is primarily focused on the ratification process.