The objective of "Forming a More Perfect Union" comes first since states needed to unite to form one nation. It means that the Union (country) was fractured and that, under the Articles, the states were virtually like sovereign countries.
As the final arbiter of the law, the Court is charged with ensuring the American people the promise of equal justice under law and, thereby, also functions as guardian and interpreter of the Constitution. The Supreme Court is "distinctly American in concept and function," as Chief Justice Charles Evans Hughes observed
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The United States Constitution is silent on the subject of political parties. The Founding Fathers did not originally intend for American politics to be partisan.
The vehicle on the left must yield the right of way to vehicle on the right.