In 1861 Ohio Representative Thomas Corwin proposed an amendment to prevent Congress from interfering with slavery in any state. It would have been the thirteenth amendment to the Constitution. Congress approved it, but eleven southern states seceded from the Union before it could be ratified. The actual Thirteenth Amendment—which prohibited slavery—was ratified in 1865.
No amendment shall be made to the Constitution which will authorize or give to Congress the power to abolish or interfere, within any State, with the domestic institutions thereof, including that of persons held to labor or service by the laws of said State.
Records of the U.S. Senate, National Archives and Records Administration