"Constitution is the main law of the land". Justify

It is considered primary mandatory meaning that it is first and must be considered, its an actual requirement. So obviously the US Constitution is the main law of the land because all other laws and constitutions are subordinate to it. By definition.

Explanation:

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answer; /// the above statement is (true);

the civil war started because of uncompromising differences between the free and slave states over the power of the national government to prohibit slavery in the territories that had not yet become states. when abraham lincoln won election in 1860 as the first republican president on a platform pledging to keep slavery out of the territories, seven slave states in the deep south seceded and formed a new nation, the confederate states of america. the incoming lincoln administration and most of the northern people refused to recognize the legitimacy of secession. they feared that it would discredit democracy and create a fatal precedent that would eventually fragment the no-longer united states into several small, squabbling countries.

i believe it caused a regional impact in societ