Proposal and Ratification

[RickBulow1974]

The Congress proposed the Twelfth Amendment on December 9, 1803, and the following states ratified the amendment:

1. North Carolina (December 21, 1803)
2. Maryland (December 24, 1803)
3. Kentucky (December 27, 1803)
4. Ohio (December 30, 1803)
5. Pennsylvania (January 5, 1804)
6. Vermont (January 30, 1804)
7. Virginia (February 3, 1804)
8. New York (February 10, 1804)
9. New Jersey (February 22, 1804)
10. Rhode Island (March 12, 1804)
11. South Carolina (May 15, 1804)
12. Georgia (May 19, 1804)
13 New Hampshire (June 15, 1804)

Ratification was completed on June 15, 1804. The amendment was subsequently ratified by the following state:

1. Tennessee (July 27, 1804)

In addition, the following states rejected the amendment:

1. Delaware (January 18, 1804)
2. Massachusetts (February 3, 1804)
3. Connecticut (May 10, 1804)