Which agreement has the force of a treaty but does not require the Senate's "advice and consent"?

An executive agreement is an international agreement made by the President of the United States with foreign governments that does not require ratification by the Senate. This type of agreement has the same legal effect as a treaty, which is a formal agreement that typically requires a two-thirds vote in the Senate to ratify. However, executive agreements can be made solely by the President and are often used for more routine matters or diplomatic arrangements that do not warrant a full treaty process.

The significance of executive agreements lies in their ability to facilitate swift action in foreign policy without the delays associated with the treaty process. This makes them a valuable tool for the President in conducting international affairs while still adhering to the framework of U.S. law.

In contrast, legislative initiatives refer to proposals for new legislation and are not agreements with foreign entities, executive orders are directives issued by the President to manage the operations of the federal government, and the line-item veto allows a president to veto specific provisions of a bill without rejecting the entire legislation, none of which hold the status of an agreement requiring the Senate's consent.