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Who has the power to declare war in the United States?

  1. President.

  2. Supreme Court.

  3. Congress.

  4. Joint Chiefs of Staff.

The correct answer is: Congress.

In the United States, Congress has the sole power to declare war. This is outlined in the Constitution, specifically in Article I, Section 8, which states that "Congress shall have Power...to declare War." While the President is the Commander in Chief of the military, they do not have the authority to declare war without the approval of Congress. Similarly, the Supreme Court and Joint Chiefs of Staff also do not have the power to declare war. This responsibility lies solely with Congress as a way to ensure checks and balances within the government and prevent the President from starting wars without proper justification or oversight.