“My first thought on the running mate question is that to balance his ticket, Barack Obama should pick a really old white general. Therefore, he should pick Dwight Eisenhower. John McCain, on the other hand, needs to pick someone younger than himself. Therefore, he also should pick Dwight Eisenhower.”
If you don’t like that choice, here’s more suggestions, such as the evil Obama from the mirror universe, Lex Luthor, or Optimus Prime.