Correct.
If he cannot be safely replaced, he needs to quietly serve out his term and leave.
As an aside, I am reminded of the studies that show serial killers and modern politicians share the same “people are there to be used” mindset.
I would’ve had much more respect for Sanford if he had just ended his relationship with his wife, assuming he doesn’t love her anymore. Get a divorce...move on. Yes, it would’ve been hard on the family, but I wonder how things are now around the Sanford house?
Sneaking around, getting your staffers to lie for you, etc.....very slick Willie-esque.