Final answer:
The 12th Amendment changed how electors cast votes for the President and Vice President.
Step-by-step explanation:
The 12th Amendment changed how electors cast votes for the President and Vice President. Prior to the 12th Amendment, electors cast two votes for President, with the candidate receiving the most votes becoming President and the runner-up becoming Vice President. However, following the 12th Amendment, electors cast separate votes for President and Vice President, ensuring that each office is chosen independently.
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