Most things are handled by the President and his Secretary of State.
Some things must be run by other parts of the government; for example, to make a treaty with a foreign country, the US Senate is required to vote on it, and two thirds of the Senators must vote yes for it to pass.
The President directs, and the day to day operations of policy are in the hands of the Secretary of State.
The Department of State is responsible for carrying out US foreign policy.
Chief Diplomat
What is the current foreign policy WHERE? (in the US) The President is responsible for foreign policy.
Executive Branch
US foreign policy stinks.
Israel has no special command over US foreign policy.
The state department carries out foreign policy when there is one that is consistent and realistic by the president. At this time there is no realistic foreign policy.
U.S. foreign policy is the special responsibility of the Department of State
The US Constitution divides the foreign policy powers between the President and Congress so both share in foreign policy.
How did the US go a isolationism foreign policy to a political and military involvement?
The US Secretary of State and the rest of the US Foreign Service (diplomat core) are public officials directly running and organizing US foreign policy.
isolation
As a US State its Foreign Policy is dictated by the State Department at the Federal level.