In the US, only the Federal Government can do this; states cannot do this individually.
It must be approved by the senate foreign regulations.
The Senate.The senate has to
The president does the foreign policy stuff.
Treaties made by the United States with a foreign power must be ratified by Congress.
The Senate! :)
The Senate.The senate has to
Approve treaties made with other countries
Approve treaties made with other countries
Parliament.
The Legislative Branch
legislative branch
Congress