<P> The practice of a presidential candidate having a running mate was solidified during the American Civil War . In 1864 , in the interest of fostering national unity , Abraham Lincoln from the Republican Party ( popular in the North ) and Andrew Johnson of the Democratic Party ( popular in the South ) , were co-endorsed and run together for President and Vice-President as candidates of the National Union Party . Notwithstanding this party disbanded after the war ended , with the result that Republican Lincoln was succeeded by Democrat Johnson ; the states began to place candidates for President and Vice-President together on the same ballot ticket - thus making it impossible to vote for a presidential candidate from one party and a vice-presidential candidate from another party , as had previously been possible . </P>
<P> The practice of a presidential candidate having a running mate was solidified during the American Civil War . In 1864 , in the interest of fostering national unity , Abraham Lincoln from the Republican Party ( popular in the North ) and Andrew Johnson of the Democratic Party ( popular in the South ) , were co-endorsed and run together for President and Vice-President as candidates of the National Union Party . Notwithstanding this party disbanded after the war ended , with the result that Republican Lincoln was succeeded by Democrat Johnson ; the states began to place candidates for President and Vice-President together on the same ballot ticket - thus making it impossible to vote for a presidential candidate from one party and a vice-presidential candidate from another party , as had previously been possible . </P>
when did presidential candidates start choosing running mates
when did presidential candidates start choosing running mates
during the American Civil War
during the American Civil War