Prior to the ratification of the Twelfth Amendment in 1804, each member of the Electoral College cast two votes for president; whichever individual who won the most electoral votes would become president, while the individual with the second-most electoral votes would become vice president. In the elections of 1792, 1796, and 1800, at least one of the major parties ran a candidate whom they intended to elect vice president. The Twelfth Amendment changed the presidential election process, requiring members of the Electoral College to cast separate votes for president and vice president. Since then, the two major parties have almost always nominated a ticket consisting of a single presidential candidate and a single vice presidential candidate. Before the election of 1832, both major parties used a congressional nominating caucus, or nominations by state legislatures, to determine presidential and vice presidential candidates.Morgan (1969), p. 195 Since 1840, each major party has consistently nominated a single ticket at their respective presidential nominating conventions.
