Answer and Explanation:
Although Congress may not be seen as a major player in U.S. national security but the congressional action that sets the foundation on which national security policy is constructed are considered as important. Congress’s role in national security can vary based on the president’s response to formulate national security agenda. Congress finds it harder to prevail when the president responds in a crisis using his influential powers and authorities, but it can resist the executive branch using constitutional powers along with informal means such as influencing public opinion.