Do vice-presidential selections matter?

.SHORTLY AFTER announcing his run for the Democratic election in 1960, John F. Kennedy mentioned: “I don’t recollect a singular case where a vice-presidential prospect assisted a selecting ballot.” Still, the north-easterner selected Lyndon Johnson as his running-mate, hoping that the statesman from Texas would aid him in southern states. Johnson tore across the South in a learn nicknamed the LBJ Express, getting to rallies in a ten-gallon hat to the stress of “The Yellow Flower of Texas”.

After he gained, Kennedy acknowledged that “our team could not have brought the South without Johnson”. That Johnson “delivered the South” is actually now obtained knowledge. But just how much variation do vice-presidential choices really create in vote-castings?