.SHORTLY AFTER declaring his compete the Democratic nomination in 1960, John F. Kennedy stated: "I don't recollect a singular scenario where a vice-presidential applicant assisted an electoral vote." Still, the north-easterner selected Lyndon Johnson as his running-mate, hoping that the senator coming from Texas will aid him in southern states. Johnson tore across the South in a train nicknamed the LBJ Express, arriving at rallies in a ten-gallon hat to the tensions of "The Yellow Flower of Texas". After he succeeded, Kennedy acknowledged that "our experts couldn't have carried the South without Johnson". That Johnson "supplied the South" is actually currently received wisdom. But how much difference carry out vice-presidential picks actually create in political elections?