But, for what it’s worth:
http://www.formsofaddress.info/former.html#128
” Former officials who hold a position of which there is more than one at a time — retired judges, retired ambassadors, retired generals, retired senators, retired bishops etc. — use their “title” in every situation for the rest of their lives.
But officials of which there there is only one at a time (The Governor, The President of the United States, The Speaker of the House, The Secretary of State, The Surgeon General ...) don’t continue use of their former title.
They use what they were entitled before taking the one-at-a-time position. E.g., Dwight Eisenhower in retirement went back to General Eisenhower. He was no longer The President”.
Same with Colin Powell ... he’s no longer addresses as “Secretary” ... he’s General Powell. ...”
Interesting.
I can see distinguishing between “Secretary” and “Senator,” since, although there are a dozen or more “secretaries” at a time, there’s only one “Secretary of State,” one “Secretary of the Interior.”
So, Hillary is Senator. Obama should be Senator, Bush41 should be Ambassador, Bush43 should be Governor, the Rapist should be Governor.
Only you and I can demand that these people start using their correct titles. This notion that a President is “President” for life is obnoxious.