I looked at all of the links provided. All I can say is context. They say that he was responding to an audience heckler about Hillary Clinton. Do I wish he hadn't "gushed" so effusively? Absolutely. Does he probably regret expressing himself that way? Sure. Do I think it means he is thinking about stepping down? No.
We all need to remember context. I know McCain was attempting to make a joke (a very, very bad one) when he sang "Bomb, bomb, bomb, bomb, bomb Iran." I know he really didn't mean we'd be in Iraq 100 years. There is context to consider. But, if Republicans want their people's words considered in context, Democrat's statements should also be considered in the same light.
Thank you for posting the links. I appreciate it.