.SHORTLY AFTER introducing his run for the Autonomous nomination in 1960, John F. Kennedy stated: "I do not remember a solitary scenario where a vice-presidential prospect supported an appointing ballot." Still, the north-easterner chosen Lyndon Johnson as his running-mate, really hoping that the senator coming from Texas will assist him in southern conditions. Johnson tore around the South in a train nicknamed the LBJ Express, getting to rallies in a ten-gallon hat to the strains of "The Yellowish Flower of Texas". After he won, Kennedy confessed that "our experts couldn't have actually brought the South without Johnson". That Johnson "provided the South" is now acquired wisdom. Yet how much variation do vice-presidential selections actually make in elections?