Quote from AAAintheBeltway:
No doubt rightfully upset that another Republican Senator was getting media time, John McCain unloaded on Rand Paul. McCain let Paul know that if there was any moral outrage to be displayed, he McCain would be the one displaying it.
McCain's aide Lindsay Graham concurred, saying an american president had inherent power to execute anyone who annoyed him, using nuclear weapons if required.
McCain later launched into a lengthy discourse about the "surge", and how his invention of the concept of using more troops had saved the Western World.