Question

What does the president do together with the State Department?

Answer 1

In the United States, both the President and the State Department are responsible for foreign policy, although most of these powers are delegated to the Secretary of States. 

Answer 2

In the United States, both the President and the State Department are responsible for foreign policy, although most of these powers are delegated to the Secretary of States.

Explanation:

They negotiate treaties.  The Presidents normally appears with his cabinet members who guide and prescribes actions to important issues.  This is particularly true with interventions with other countries.  They have to express policies that would agreeable and beneficial to both parties particularly in pressure situations.