Through the Department of State and the Department of Defense, the President is responsible for the protection of Americans abroad and of foreign nationals in the United States. The President decides whether to recognize new nations and new governments, and negotiate treaties with other nations, which become binding on the United States when approved by two-thirds of the Senate. The president may also negotiate "executive agreements" with foreign powers that are not subject to Senate confirmation. I believe the president can negotiate treaties, but they do not take effect until the Senate votes to ratify them.
It is the Secretary of State's job to negotiate treaties.
The role that the president plays when he deals with foreign leaders is to negotiate on behalf of a nation. He acts as the representative of the entire nation.
Yes, of course the president can. I believe it was the Louisiana Purchase that the president bought without asking the congress. When asked that the president did not have the power to buy the land. He said that he did have the power to "negotiate" treaties.
The Secretary of State negotiates treaties but they must be approved by the President and ratified by the Senate.
Yes
The president can make treaties, but Congress must ratify them.
The secretary of state.
The president can negotiate treaties, but they must be ratified by the senate to go into effect. He can appoint ambassadors, and they also must be approved by the senate.
The Congress has to agree with treaties. If they don't it cannot be made.
Congress can impeach a president (accuse them of a crime), override the president's veto power, and reject his or her treaties.
The President does not make treaties. Congress does. This includes the Senate as well as the House of Representatives.
No treaty by ANY president is valid without the consent of the Legislature.