Job Description: Immediate position available for President of the United States. Computer literacy and ability to communicate effectively a must. Must be in good health and able to meet the physical and emotional demands of this labor intensive position for at least four years. Warmongers need not apply.
Let's forget about everything else (and there's a lot to forget about in order to do that, but I'll keep this short) and realize that John McCain is 71 years old. 72 in August.
We wouldn't really elect a 72 year old into a 4 year office, right? No offense to people in their seventies, but that's really old. Lots of people die in their seventies. There's no guarantee on four more minutes, little less four more years.
A lot of people that age are also very stubborn, and unwilling or unable to change their ways. The man admits to not even being able to use The Google. NOT BEING ABLE TO USE GOOGLE.