Proposal and Ratification
The Congress proposed the Twelfth Amendment on December 9, 1803, and the following states ratified the amendment:
- North Carolina (December 21, 1803)
- Maryland (December 24, 1803)
- Kentucky (December 27, 1803)
- Ohio (December 30, 1803)
- Pennsylvania (January 5, 1804)
- Vermont (January 30, 1804)
- Virginia (February 3, 1804)
- New York (February 10, 1804)
- New Jersey (February 22, 1804)
- Rhode Island (March 12, 1804)
- South Carolina (May 15, 1804)
- Georgia (May 19, 1804)
- New Hampshire (June 15, 1804)
Ratification was completed on June 15, 1804. The amendment was subsequently ratified by the following state:
- Tennessee (July 27, 1804)
In addition, the following states rejected the amendment:
- Delaware (January 18, 1804)
- Massachusetts (February 3, 1804)
- Connecticut (May 10, 1804)
Read more about this topic: Twelfth Amendment To The United States Constitution