Which power allows the President to make treaties?

The correct choice highlights the specific authority granted to the President in relation to treaties under the Constitution. The President has the power to negotiate treaties with foreign nations, but this power is not absolute. The requirement for Senate ratification—where two-thirds of the Senate must approve a treaty—serves as a critical check on this presidential power. This ensures that treaty-making involves collaboration and consensus between the executive and legislative branches.

The other options do not pertain to the power of making treaties. The ability to declare war is primarily a power reserved for Congress as outlined in the War Powers Resolution. Appointing federal judges is a different power that does not relate to treaty-making, as it involves the selection of members of the judiciary. Finally, issuing executive orders is a way for the President to manage the operations of the federal government but does not involve negotiating or entering into treaties with foreign governments.