A comment from Simple on the Michelle Bachmann issue triggered a thought last night. Simple made the point that we are electing people and not Saints. This is true as far as he took it.
If one were to take the next step, we can see that the job takes a tremendous toll on the occupant of the office. I found a site that had before & after pictures of all the presidents from Gerald Ford onward. All show significant aging; some moreso than others.