As I recall Obama had to give up his blackberry so that his texts and emails could be archived, and the whole HRC affair involves the use of a private server and non-govermental cell phones to get around the archiving laws. Since Trump is an employee of the American electorate, I am totally OK with our elected representatives creating a law that keeps POTUS off of twitter, or twitter can decide to stop giving him a venue in the interest of archival of presidental statements. Either of those would be great, but not likely to happen. The ruling would be spot on if twitter were a goverment informational utility, or if it cited twitter as stepping around the federal archiving requirements.
Whether I like it or not he is taking advantage of a legal service provided by a private company. There are mechanisms available to fix it, but I don't see any of the capable parties having the spine to take a stand. My only real problem with the ruling is the minor flaw it seems to be based on, which as we all know as pistol shooters is a small error at the muzzle results in a drastic miss downrange. I very frequently see small flaws, when accepted as fact, balloon into huge, nearly insurmountable legal obsticles, like the current trends in DWI caselaw. Locally theTorres decision is 20 years old, and not a single prosecutor statewide has been able to come up with an arguement that makes admissable our most accurate, least intrusive sobriety test, that is admissible in every other state of the union. All because a clever defense attorney made a convincing argument the science needed to be ignored without expert testimony explaining the neurological/opthamological causes behind an observable effect of alcohol in the bloodstream at a specific concentration. BUT the other two tests, using the same science, does not need expert testimony to explain the observable effects alcohol has while in the bloodstream and are admissable, while being less accurate, and requiring more from the suspect. The Torres decision is widely regarded as bad caselaw, but has yet to be overturned.
The largest problem with minor flaws in legal decision comes well downstream of the decision itself. Unintended consequences and such.
pat