I don't know why our folks are putting this out there (Palin, McCain, etc.). Maybe its a double dare to stop the swap - how could the One make the change if the Repubs were the ones who recommended it? It would be a sign of weakness.
Still, I'd much rather have Ryan debate Biden. It is so close now, she could actually hurt us.
This. Moreover, dumping Biden for Hillary would be an admission that his first term has been a failure.