The American Constitution states the explicit powers of the Vice President include becoming president should the president become incapable of carrying out their duties as well as serving as the presiding officer over the U.S. Senate as the "President of the Senate."
The Vice President of the United States presides over the Senate and serves as the tie-breaking vote when needed. They also assume the presidency if the President cannot fulfill their duties and act as Acting President in cases of temporary incapacity. These roles are crucial for the continuity of leadership in the U.S. government.
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