After Hoover was elected in 1929, we did not have another Republican president until Ike was elected with Nixon as VP. After that we had Nixon/Ford, Reagan/Bush, Bush/Quayle, Bush/Cheney.
Trump needs to pick Jeb as his running mate. History says he cannot win without him.
Read more:
Why haven't the Republicans been able to win an election without Nixon or a Bush on the ticket since 1929?