The president, senators, and representatives make decisions for the whole country by doing what?

The answer is The President is the Commander-in-Chief of the Armed Forces, while Senators and Representatives are Members of Congress. They make decisions for the whole country by making or changing laws that affect everyone in the United States. ... In order to vote, you must be a U.S. citizen who is at least 18 years old.

Explanation:

answer; collective security;