FACT CHECK: DID THE STATES HAVE THE RIGHT TO DEFEND THEIR CONGRESSIONAL REPRESENTATION BEFORE THE WAR OF 1861? YES, THEY DID.
Yes. Congressional Congressmen made their legal argument through Article 1, Section 2, Clause 3 of the compact entitled “The Constitution of the United States”. Slavery was tied to State representation in the US House of Representatives. Remove slavery and States lose representation and therefore the power to affect legislation.