An important presidential tool in lawmaking is the veto (reject) power. ... As head of state, the president represents the nation. As chief diplomat, the president directs foreign policy. As commander in chief, the president backs up foreign-policy decisions with military force when necessary.
As the twentieth century progressed, the size of the United States Federal Government expanded dramatically. This naturally resulted in the Vice President having to take on more of the responsibilities that the President simply didn't have time to take care of.
It is because "T<span>he peace treaty had been signed several weeks before" the war.
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