Trump's account is probably specially marked for two- or even three-person lock, to prevent "rogue account termination" as has already happened. So the questions quickly turn to odd angles: how many other high-profile, politically (and/or economically) influencal accounts are equally protected? What criteria are used to assign the account this level of protection? Should this kind of account lock mechanism be more widely available? If yes, to whom?
I personally suspect that Twitter will eventually have to follow Google's route for high-profile accounts and identity management in general.[0] If people are using Twitter as their personal press office, the company has no choice but to accommodate.
If that's proven to be the case, that in itself is quite a big issue. Biden, as a leading political rival absolutely should have a right to similar protections if they exist.
Indeed, as a democracy, anyone should have access to the same level of protection. Or at the very least, all verified accounts.
I do think that Google should subject passwords for accounts in the program to HIBP checks. By this point every major browser provides at least some kind of password manager functionality. It'll probably never be the same quality as a stand-alone, fully focused password manager product, but it must be an improvement over forcing to memorise passwords.
Are Twitter protecting "even higher" profile accounts? Why do they put more effort into protecting these "even higher" profile accounts? And how do they protect these accounts? And if that really is the case, and this product feature is outed during this election campaign year, then Twitter deserve a court summons.
I seriously doubt Trump's account would, or should have that much more protection than other high profile, verified accounts.