"We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defense, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America."

這段話賦予政府的目的-為美國服務-  domestic;  ourselves and our Posterity.

美國優先不僅完全合乎倫理, 更是憲法賦予政府的目的.