Which action is a foreign policy power of the president

The separation of powers has spawned a great deal of debate over the roles of the president and Congress in foreign affairs, as well as over the limits on their respective authorities. “The Constitution, considered only for its affirmative grants of power capable of affecting the issue, is an invitation to struggle for the privilege of directing American foreign policy,” wrote in 1958

Explanation:

answer; andrew jackson approved nullification by signing it into law,and john calhoun opposed it saying it was unconstitutional;