The highest authority in the United States is the <u>Constitution, because of the Supremacy clause.
</u>The Supremacy clause states which power is the highest authority, and the Constitution is the Americans' most important document. <u>
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Everything
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The domestic slave trade move westward and increase dramatically
The correct answer for this one is this: "This is one of the learning objectives that you can read in the book 'Traditions and Encounters, AP Edition (Bentley), 5th Edition' specifically at <span>Chapter 33: The Great War: The World in Upheaval.</span>