"And the elephant shall lay with the donkey"

Adding to the whole "are these parties REALLY that different?" argument, let's take a look at Obama's VP pick:

A lifetime senator with a good record on foreign policy and security. Also, he's a stodgy old white man who can come across as just plain mean.

And the McCain VP pick:

A young minority with but a few years of experience on a political level. She is, however, dynamic with an audience and seems personally approachable.

Obama picked the Democratic McCain, so McCain went and found the closest thing to a Republican Obama. I'm reminded of an episode of Futurama where John Jackson was up for president against Jack Johnson. Thankfully though, by the end of the episode, the disembodied head of Richard Nixon attached to an evil robot body won the presidency.