June 15: On This Day in 1804 - 12th Amendment Ratified

June 15, 1804:  The 12th Amendment to the U.S. Constitution was ratified on this day in 1804.  It changed the method of electing the president and vice president after a tie in the electoral college during the election of 1800.  Rather than each elector voting for two candidates with the candidate receiving the most votes elected president and the second-place candidate elected vice president, each elector was now required to designate his choice for president and vice president, respectively.