The president appoints them, then they go through approval by the Senate
The South and South Asian nations rejected both the U.S. and U.S.S.R policies of expanding the Cold War
The Founding Fathers of the US included provisions for amending the Constitution so that it can adapt as American society changes. This group of men realized that America was going to constantly change. This is why in the preamble of the Constitution they included the fact that they were making the Constitution in order to form a "more perfect union." This phrasing indicates the the current laws they have are not perfect and that they may need to be changed later on. This is why the Founding Fathers made it so that the Senate and House of Representatives could make changes to the Constitution.
