Much earlier - had more to do with the selection of Adams as president & Jefferson as VP in 1796 (would be like Biden as President and Trump as VP in today's world) And the very messy election of 1800 involving Adams, Jefferson, Burr --which lead to the Hamilton/Burr bad ending - Hamilton dead, Burr a political piranha.
A couple good explainers:
https://www.thoughtco.com/12th-amendment-4176911
https://constitution.laws.com/12th-amendment
The 12th Amendment to the
United States Constitution refined the manner in which the
President and
Vice President of the United States are elected by the
Electoral College. Intended to address unforeseen political problems resulting from the presidential elections of 1796 and 1800, the 12th Amendment replaced the procedure originally provided for in Article II, Section 1. The amendment was passed by Congress on December 9, 1803, and ratified by the states on June 15, 1804.
Key Takeaways: 12th Amendment
- The 12th Amendment to the U.S. Constitution modified the way in which the president and vice president are elected under the Electoral College system.
- The amendment requires that the electors of the Electoral College cast separate votes for president and vice president, rather than two votes for president.
- It was approved by Congress on December 9, 1803, and ratified by the states, becoming a part of the Constitution on June 15, 1804.