What was the primary motivation of the Southern Manifesto written by Strom
Thurmond?

The Manifesto was drafted to counter the landmark Supreme Court 1954 ruling Brown v. Board of education.

Explanation:

All of them were from former Confederate states. 99 were Democrats; two were Republicans. The Manifesto was drafted to counter the landmark Supreme Court 1954 ruling Brown v. Board of Education.

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an economic reason that the south needed a reconstruction plan is that plantations, factories, and other businesses were destroyed during the war.

missouri compromise of 1820 which prohibited slavery