What if he became President and accidentally mortally insulted the leader of another country because he was tired? Whether or not it's right, the President is the face of the nation, and is a very powerful position. One would hope that anyone aspiring to that position would be careful about what comes out of his mouth.
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If ye love wealth better than liberty, the tranquility of servitude than the animated contest of freedom, go from us in peace. May your chains sit lightly upon you, and may posterity forget that you were our countrymen! - Samuel Adams