Yeah, but they’re not going to give a president a code name without their approval.
thanks. I looked a little more....what is “official” and what actually happens is all wink-wink; nudge-nudge...
this says you are right. - interesting article.
https://www.npr.org/2012/03/24/149284357/how-does-the-secret-service-create-code-names
“BESCHLOSS: Usually, a president or anyone else who’s protected gets a list of possible codenames, and they get to choose. And if it’s something too awful they can choose something else.”