We all know what's kept McCain going throughout his life:

1. Personal ambition
2. Love of beautiful women
   

Now, he told us that personal ambition was why he ran in 2000.

He might have decided to run in 2008 for the same reason, initially, but by the time he had to pick his running mate he realized a couple of things:

1. He was old and tired.
   
2. His campaign had been screwed up (he let it be screwed up in the name of his ambition).
3. The Republicans screwed up so badly that he was probably not going to win, no matter what he did.

It all appeared that his #1 motive just wasn't going to be fulfilled, so his #2 motive kicked in... Cindy obviously wasn't getting any younger and another wife switch would have been a bad idea this late in the game. But he should be allowed to have just a little more fun before he retires and/or dies. The country owes him at least that much. So he picked Palin.

I thought about this long ago, even before the actual Palin pick, but now there's video proof: watch it, it's hilarious.