What is a reason that some historians provide to explain why many americans support the idea that states’ rights caused the civil war?

the U.S. government refused to recognize the southern states’ right to secede from the Union, and the C.S. government asserted that right by seizing federal property within its states' borders.

Explanation:

Although the Historians mostly believe that it is not one of the main causes of the war (it was most likely a proponent, only), this is what the supporters of the idea of State's rights commonly argue as the main reason for the Civil War.

the images of war are haunting

-an amendment is proposed.

-two-thirds of congress must approve.

-thee-quarters of states must approve.

-the proposed amendment becomes law.

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